Cho hai tập hợp $P = [3m - 6 ; 4)$ và $Q = ( -2 ; m + 1)$, $m \in \mathbb{R}$. Điều kiện của tham số $m$ để $P \backslash Q = \varnothing$ là

Read the following passage about Champions of the Overlooked and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

In every community, there are special people who help those who cannot speak for themselves. These champions work tirelessly to bring attention to forgotten issues and overlooked individuals. They believe that every person deserves dignity and respect, regardless of their circumstances. Animal rights activists are dedicated individuals (18)_________. Many homeless people are ignored by society, but they deserve our attention and support. Children with disabilities often face barriers to education; however, dedicated teachers create inclusive classrooms for all students. The elderly share their wisdom and experience while needing our care and respect. If more resources were provided, (19)_________. Environmental defenders protect natural habitats and speak for future generations who will inherit our planet. They monitor pollution levels, plant trees, and educate communities about sustainability. These champions often work without recognition, (20)_________.

Volunteers at animal shelters provide food, medical care, and love to abandoned pets. (21)_________. Many of these helpers also advocate for stronger animal protection laws and better education about responsible pet ownership. Their dedication shows us how much impact one person can have on many lives. (22)_________. Their work reminds us that true humanity means caring for all living beings, especially those who cannot advocate for themselves. By supporting these champions, we too can help build a more compassionate and inclusive society where everyone is valued and heard.

Tập xác định của hàm số \(y = \frac{{x + 1}}{{x - 1}}\) là?

Read the following passage about The Longitude Prize and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions

     On a stormy night in 1707, four ships struck rocks off the south coast of England and sank. [I] One thousand, four hundred sailors were drowned. [II] The ships had crashed because they had no way of knowing how far they had travelled in a particular direction; they could not calculate their longitude, which required accurate time measurement. [III] In such difficult circumstances, they believed that the best response to the disaster was a competition: the Longitude Prize. [IV]

     The Longitude Prize was no ordinary competition. To win it, someone had to find a way of calculating how far a ship had travelled east or west from its point of departure. Geniuses such as Sir Isaac Newton had failed to find a solution, so to ensure the interest of Britain’s greatest scientific minds, the government offered a prize of £20,000 — the equivalent of £2.6 million in today’s money. But to everyone’s surprise, it wasn’t a famous academic who solved the problem, but an unknown carpenter.

     When John Harrison wasn’t working with wood, he was making clocks. An accurate clock would allow sailors to calculate their position, but at the time it was thought impossible to create a mechanical clock that could work on a ship. The movement of the sea and the changes in temperature destroyed the delicate parts. However, after three frustrated attempts, Harrison’s fourth sea clock, H4, finally triumphed. Its mechanics were so good that the H4 worked better than most clocks on land.

   The Longitude Prize and Harrison’s success generated a lot of interest in the 18th century, but it was soon forgotten. However, in 2013, the British government created a new Longitude Prize, offering £10 million to the person who could solve a great challenge to humanity. An enthralled public then took part in a TV programme where viewers chose one challenge from a list of six for scientists to focus on. The question now is, will someone be able to solve it just as well as Harrison solved the challenge presented to him?

Which of the following can be inferred from the passage?

Từ các chữ số \(1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9\) có thể lập được bao nhiêu số tự nhiên mà mỗi số có 6 chữ số khác nhau và tổng các chữ số hàng chục, hàng trăm, hàng nghìn bằng 8?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Ann: Absolutely! I’ve been looking forward to it all month. Do you know what activities they have there?

b. John: Yes, they have huge water slides, a lazy river, and even a wave pool! I can’t wait to try them all.

c. John: Hey! Are you excited about the water park trip this weekend?

d. Ann: That sounds so fun! I’m definitely going to start with the biggest slide. What about you?

e. John: I think I’ll try the lazy river first; it sounds relaxing. Then we can go on the slides together!

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Lucy: Great! Graphic design is such a creative field.

b. Mark: I’m thinking about switching my career to graphic design.

c. Lucy: That’s an interesting choice! Have you taken any courses?

d. Mark: Yes, I’ve started some online classes to build my skills.

e. Mark: I know, and I’m excited to learn more about it.

Tính diện tích hình phẳng được giới hạn bởi các đường \(y={{x}^{2}}+x-1\),\(y={{x}^{4}}+x-1,x=-1,x=1\)  (làm tròn đến hai chữ số thập phân)

Trong nghiên cứu di truyền, nguyên tắc bổ sung đóng vai trò rất quan trọng vì nguyên tắc này được sử dụng trong phương pháp lai phân tử với nhiều mục đích nghiên cứu khác nhau. Tùy theo mục đích mà người ta có thể tiến hành các kiểu lai phân tử khác nhau như DNA - DNA, DNA - RNA và RNA - RNA. Trong đó, kiểu DNA - DNA để xác định mối quan hệ họ hàng giữa các loài khác nhau.

Để xác định mối quan hệ họ hàng giữa loài A và loài B, người ta tiến hành như sau:

Bước 1: Cho mẫu DNA của hai loài A (không có đánh dấu) và loài B (có đánh dấu) vào trong một dung dịch thích hợp.

Bước 2: Đun dung dịch trên ở nhiệt độ khoảng 80 - 90 ^oC.

Bước 3: Hạ từ từ nhiệt độ đến khi dung dịch nguội hẳn.

Bước 4: Thu mẫu các phân tử DNA, phân tích kết quả và đưa ra kết luận.

CHỦ ĐỀ: SỰ SINH TỒN CỦA CÁC NGÔN NGỮ Ở VIỆT NAM HIỆN NAY

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 21)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d0a01a0e4114

Và trả lời câu hỏi sau:

Theo bài đọc, nhóm cảc dân tộc thiểu số nào ở Việt Nam hiện nay đã có chữ viết?

Đâu là ý đúng: Bước đầu tiên của quy trình sản xuất phân bón vi sinh phân giải chất hữu cơ là gì?

Quy trình ứng dụng công nghệ sinh học phát hiện sớm virus gây bệnh ở vật nuôi gồm mấy bước cơ bản?

Read the following passage 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.

Who are you?

On 6 June 2011, the media reported the kidnapping of a female Syrian-American blogger called Amina Arraf. Regarded as a daring political rebel, the 35-year-old had gained popularity for her blogs protesting the lack of freedom in Syria. Yet, only two days later, it was discovered that Amina had never existed. She was a fictional character created by Tom MacMaster, a forty-year-old American PhD student at the University of Edinburgh.

MacMaster's invention is an example of sock puppetry: the use of false identities to deceive others. (I). The false identity is known as a sock puppet, and its creator, a puppet master. (II). MacMaster created Amina to express his views on Middle Eastern affairs without offending other Americans. (III). Writing as Amina gave him the authority to say what he wanted. (IV).  

At the turn of the millennium, Debbie Swenson created Kaycee Nicole, a fictional teenage girl suffering from terminal cancer. Her blog, Living Colours, described Kaycee’s struggle, attracting millions of readers. When Kaycee 'died' on 14 May 2001, her fans were devastated. Their distress turned to anger when they discovered that Kaycee was not real. Swenson had developed the character to gain attention and sympathy.

While Amina and Kaycee were used to meet their creators' needs, other identities have been invented for profit. American gun advocate John Lott made up a fake student, Mary Rosh, to defend his writing online and give him positive reviews. Mystery writer RJ Ellory fabricated a team of sock puppets to praise his own books and tear into those of his rivals. British historian Orlando Figes lost credibility when he had to publicly apologise for doing the same.

Yet none of these stories compare to large-scale sock puppetry today. The New York City Police Department has false identities on social media to catch criminals. The US military is believed to use sock puppets to track potential terrorists. It is clear that the internet is a minefield today and we all have to step very carefully in order not to get hurt.

Which of the following is NOT a reason for creating sock puppets?

Protein không thực hiện các chức năng nào trong các chức năng dưới đây?

Công suất tiêu thụ năng lượng điện của đoạn mạch được tính bằng?

Choose the correct answer to fill in the blank in each of the following questions.

The analyst hit the __________ on the head when explaining the economic challenges facing the country.

Ngô Tử Văn tên là:

Khi thiếu hoặc thừa nguyên tố khoáng, thực vật có biểu hiện là như thế nào?

Đâu không phải là khoáng sản nổi bật ở khu vực Mỹ Latinh?