Cho các phát biểu sau đây về mục tiêu của Sinh học:
(1) Hình thành thế giới quan khoa học.
(2) Rèn luyện đức tính yêu lao động, yêu thiên nhiên.
(3) Phát triển năng lực và nhận thức Sinh học giúp tìm hiểu và vận dụng Sinh học vào thực tiễn.
(4) Giúp tìm ra phương pháp khai thác triệt để các nguồn tài nguyên thiên nhiên trên Trái Đất.
Có bao nhiêu phát biểu đúng?
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Các mục tiêu của Sinh học:
+ Hình thành thế giới quan khoa học.
+ Rèn luyện đức tính yêu lao động, yêu thiên nhiên.
+ Phát triển năng lực và nhận thức Sinh học giúp tìm hiểu và vận dụng Sinh học vào thực tiễn.
→ (1), (2), (3) đúng.
Câu hỏi liên quan
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
Which of the following best summarizes the passage?
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
The word "enriching" in paragraph 3 is CLOSEST in meaning to ____.
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
The phrase "self-motivated pursuit" in paragraph 1 could be best replaced by ____.
Đồng vị phóng xạ \(\beta^{-}\)xenon \({ }_{54}^{133} \mathrm{Xe}\) được sử dụng trong phương pháp nguyên tử đánh dấu của y học hạt nhân khi kiểm tra chức năng và chẩn đoán các bệnh về phổi. Mỗi hạt nhân xenon \({ }_{54}^{133} \mathrm{Xe}\) phân rã tạo thành một hạt nhân cesium, một hạt \(\beta^{-}\) và một hạt \({ }_{0}^{0} \bar{v}\). Chu kì bán rã của xenon \({ }_{54}^{133} \mathrm{Xe}\) là \(\mathrm{T}=5,24\) ngày. Một mẫu khí chứa xenon \({ }_{54}^{133} \mathrm{Xe}\) được sản xuất tại nhà máy có độ phóng xạ \(\mathrm{H}_{0}=4,25 \cdot 10^{9} \mathrm{~Bq}\). Mẫu đó được vận chuyển về bệnh viện và sử dụng cho bệnh nhân sau đó \(t=2,00\) ngày.
Độ phóng xạ của mẫu xenon \({ }_{54}^{133} \mathrm{Xe}\) khi bệnh nhân sử dụng là \(x \cdot 10^{9} \mathrm{~Bq}\). Tìm \(x\) (làm tròn kết quả đến chữ số hàng phần trăm).
Một đoạn dây dài 2,0 m mang dòng điện 0,60 A được đặt trong vùng từ trường đều có độ lớn cảm ứng từ là 0,50 T, theo phương song song với phương của cảm ứng từ. Lực từ tác dụng lên dây có độ lớn là:
Trong sóng điện từ, dao động của điện trường và của từ trường tại một điểm luôn...
Gọi \(p, V\) và \(T\) lần lượt là áp suất, thể tích và nhiệt độ tuyệt đối của một khối khí lí tưởng xác định. Công thức nào sau đây mô tả đúng định luật Boyle?
Nội năng của khối khí giảm 15 J khi truyền cho khối khí một nhiệt lượng 35 J. Khi đó, khối khí đã:
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
Which of the following best paraphrases the underlined sentence in paragraph 4?
Hình bên mô tả một chiếc ô tô 4 bánh đang vượt qua một sa mạc. Chuyến đi bắt đầu vào sáng sớm khi nhiệt độ khí ngoài trời là \(t_{0}=5,0^{\circ} \mathrm{C}\). Thể tích và áp suất của khí chứa trong mỗi lốp xe là \(V=1,2 \mathrm{~m}^{3}\) và \(p_{0}=2,5\) bar với 1 bar \(=10^{5} \mathrm{~Pa}\). Coi khí trong lốp xe là khí lí tưởng và có nhiệt độ như khí ngoài trời. Bỏ qua sự dãn nở vì nhiệt của các lốp xe.
Strontium \({ }_{38}^{90} \mathrm{Sr}\) là một trong số các bụi phóng xạ nguy hiểm từ các vụ nổ hạt nhân. Chu kì bán rã của \({ }_{38}^{90} \mathrm{Sr}\) là \(T=28,8\) năm. Strontium khi bị bò ăn phải, sẽ tập trung trong sữa của bò và sẽ được lưu lại trong xương của những người uống sữa bò đó. Strontium \({ }_{38}^{90} \mathrm{Sr}\) khi nằm trong xương sẽ phát ra các tia phóng xạ có năng lượng lớn, phá hủy tủy xương và do đó làm suy yếu sự sản xuất tế bào hồng cầu. Strontium \({ }_{38}^{90} \mathrm{Sr}\) có khối lượng mol là \(M=90 \mathrm{~g} / \mathrm{mol}\). Lấy một năm có 365 ngày. Số Avogadro là \(N_{\mathrm{A}}=6,02 \cdot 10^{23} \mathrm{~mol}^{-1}\).
Khi làm vỡ nhiệt kế thủy ngân, ta dùng biện pháp nào sau đây để thu gom thủy ngân có hiệu quả nhất?
Hình bên mô tả một dynamo gắn trên xe đạp và sơ đồ cấu tạo của nó. Khi xe đạp chạy, bánh xe làm cho núm dẫn động quay, kéo theo nam châm quay. Khi đó trong cuộn dây xuất hiện dòng điện, làm cho bóng đèn mắc nối tiếp với cuộn dây sáng lên.
Dòng điện chạy qua bóng đèn là dòng điện gì, độ sáng của bóng đèn thay đổi như thế nào khi xe đạp tăng tốc độ?
Hình bên dưới là sơ đồ nguyên lí hoạt động của một máy làm nóng nước. Nước lạnh có nhiệt độ \(t_{1}=20,2^{\circ} \mathrm{C}\) được đưa vào máy từ ống dẫn nước lạnh với lưu lượng \(\mu=2,50\) lít \(/ \mathrm{phút}\). Khối lượng riêng của nước là \(\rho=1000 \mathrm{~kg} / \mathrm{m}^{3}\). Nhiệt dung riêng của nước là \(c=4180 \mathrm{~J} /(\mathrm{kg} \cdot \mathrm{K})\). Hiệu suất làm nóng nước là \(H=95 \%\).
Công suất tiêu thụ điện của máy làm nóng nước là:
Khoảng giữa tháng 3 năm 2015, khi bàn giao tài sản do thay đổi nhân sự phụ trách an toàn bức xạ, một nhà máy thép tại Bà Rịa - Vũng Tàu phát hiện một nguồn phóng xạ \({ }_{27}^{60} \mathrm{Co}\) đã bị thất lạc. Nhà chức trách chỉ đạo phải khẩn cấp tìm nguồn phóng xạ đã bị thất lạc này.
Việc khẩn cấp tìm kiếm nguồn phóng xạ \({ }_{27}^{60} \mathrm{Co}\) bị thất lạc là rất quan trọng vì nguồn này
Trong một cuộc tập luyện chạy Marathon, người ta ước tính "nữ hoàng chân đất" Phạm Thị Bình của Việt Nam (hình bên) tiêu tốn khoảng \(E=2,52 \cdot 10^{6}\) calo (cal). Giả sử có \(40 \%\) năng lượng tiêu tốn được dùng cho vận động, phần năng lượng còn lại chuyển thành nhiệt thải ra ngoài nhờ sự bay hơi của nước qua hô hấp và da để giữ cho nhiệt độ cơ thể của cô không đổi. Coi nhiệt độ cơ thể của cô không đổi và nhiệt hoá hơi riêng của nước ở nhiệt độ của cơ thể của cô là \(L=2,4 \cdot 10^{6} \mathrm{~J} / \mathrm{kg}\). Lấy \(1 \mathrm{cal}=4,18 \mathrm{~J}\). Khối lượng riêng của nước là \(D=1,0 \cdot 10^{3} \mathrm{~kg} / \mathrm{m}^{3}\).
Hỏi có khoảng bao nhiêu lít nước đã thoát ra ngoài cơ thể của cô cho cuộc tập luyện này (làm tròn kết quả đến chữ số hàng phần trăm)?
Một nồi áp suất có van xả tự động sẽ mở khi áp suất hơi trong nồi bằng 9 kPa . Ở \(21^{\circ} \mathrm{C}\), hơi trong nồi có áp suất 2500 Pa . Van xả tự động mở khi nhiệt độ của hơi trong nồi bằng.
Một lò nấu luyện nhôm sử dụng điện, trung bình nấu chảy được 400 kg nhôm trong mỗi lần luyện. Biết nhiệt nóng chảy riêng của nhôm là \(4 \cdot 10^{5} \mathrm{~J} / \mathrm{kg}\).
Nhiệt lượng cần cung cấp để nấu chảy hoàn toàn nhôm ở nhiệt độ nóng chảy trong mỗi lần luyện là
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
The word "it" in paragraph 5 refers to ____.
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)
Which of the following is TRUE according to the passage?