Phương pháp nào sau đây là phương pháp chủ động tác động vào đối tượng nghiên cứu và những hoạt động của đối tượng đó nhằm kiểm soát sự phát triển của chúng một cách có chủ đích?
A. Phương pháp làm việc trong phòng thí nghiệm.
B. Phương pháp quan sát.
C. Phương pháp thực nghiệm khoa học.
D. Phương pháp tự thụ phấn.
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Câu hỏi liên quan
Xác định ý đúng: Hoạt động đánh bắt quá mức đã khiến nguồn lợi thủy sản ven bờ của nước ta bị suy giảm nghiêm trọng. Biện pháp quan trọng nhất để hạn chế suy giảm nguồn lợi thủy sản ven bờ ở nước ta hiện nay cơ bản được cho là?
Đâu là đặc điểm hình thái của lá giúp hấp thụ nhiều tia sáng?
Ampe kế có giới hạn đo là 50 mA phù hợp để đo cường độ dòng điện nào dưới đây?
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
It’s your own fault. You _________ them to go out on their own; they are still new here.
1. No matter who we are or where we are from, we only have 24 hours each day to get things done. Some people seem to make the most of their time, using it to achieve their goals and dreams. Others feel that life is passing them by and they aren’t accomplishing anything. If you are in the latter group, it is not too late to turn things around. By implementing a few simple hacks, you can start getting better results very quickly.
2. If you want to become more productive, it pays to learn about the Pareto principle (which is also known as the 80-20 rule). It states that for most tasks, 80 percent of the results we get come from 20 percent of the work we do. For example. 80 percent of the company sales usually come from 20 percent of customers. Therefore, the trick is to focus your efforts on the key 20 percent of actions that truly matter to greatly improve your results.
3. In some cases, people may be busy from morning to night but still seem to get nothing done. In this situation, the problem might be that clear goals haven’t been set. To fix this, set some time aside to list the things you want to achieve in life. Then, select the top three or four that you want to focus on for the next year. Look at your goals every night before bedtime and ask yourself what are the next actions to accomplish each day. Then, promise yourself that you will finish these tasks no matter how busy you get. If possible try completing the tasks first thing in the morning so you are assured of success.
4. Another common mistake regarding productivity is not considering our energy levels. If we try to work around the clock, we will eventually get tired and quit. Everyone needs time to sleep, eat, socialize with friends, and unwind from the stress of the day. To make sure you don’t burn out, be sure to schedule some time for breaks and fun activities into your schedule every day. Finally, no matter how difficult your goals may seem, remember the old saying that “a journey of a thousand miles begins with a single step”.
What should we do in order to achieve our goals?
Vì sao tế bào, mô, cơ thể, quần thể, quần xã – hệ sinh thái được xem là các cấp độ tổ chức sống cơ bản?
Phát biểu nào sau đây không đúng khi nói về các nguyên tố hóa học có trong tế bào?
Bào quan lưới nội chất trơn của tế bào nhân thực có chức năng nào sau đây?
Đâu không phảilà ứng dụng của vật lí vào trong cuộc sống, khoa học, kĩ thuật và công nghệ?
Diễn biến nào không có trong pha sáng của quá trình quang hợp?
Điều không phản ánh đúng tình hình nước ta thế kỷ XVI?
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
Dear Nhung,
a. I hope this email finds you well. I’m writing to let you know that I’ll be arriving in Hanoi next Monday and wanted to ask if you’ll be at home then.
b. Would it be possible for you to meet me at the airport?
c. Please let me know once you’ve received this email. I’m looking forward to hearing from you soon!
d. By the way, I was wondering if you could recommend some historical sites in northern Vietnam.
e. I am also planning to visit a few places there to gather materials for my Cultural Studies presentation.
Best regards,
Anna
Thị trường có những chức năng gì dưới đây?
Find the word which has a different sound in the part underlined.
Read the following advertisement/school announcement and mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 10 to 15.
ANNOUNCEMENT OF SCHOOL YEAR-END PARTY
- The School Youth Union would like to announce:
+ All students (13) _______ to be present at 19:00 on May 29.
+ Each class is to prepare a performance for the Talent Show. Each performance should not exceed 5 minutes.
+ Each class is to (14) _______ one student to take part in the “King and Queen of the Night” event.
- (15) _______ you have any questions, please contact your class monitor.
Read the passage carefully. Choose an option (A, B, C, or D) that best answers each question from 41 to 45.
1. It is estimated that about 40 per cent of the world's population use social media, and many of these billions of social media users look up to influencers to help them decide what to buy and what trends to follow. An influencer is a person who can influence the decisions of his or her followers because of his or her knowledge or special knowledge in a particular area, e.g. fashion, travel, or technology. Influencers are now seen by many companies as a direct way to customers' hearts. Brands are now asking powerful influencers to market their products. With some influencers charging up to $25,000 for one social media post, it is no surprise that more and more people are keen to become influencers, too. If you are one of them, then here are five tips on how to do it.
2. Choose your niche: What is the area that you know most about? What do you feel most excited talking about? Find the specific area that you are most interested in and develop it.
3. Choose your medium and write an interesting bio: Most influencers these days are bloggers and micro-bloggers. Decide which medium – such as your own online blog, Instagram or Snapchat – is the best way to connect with your followers and chat about your niche area. When you have done that, write an attention-grabbing bio that describes you and your speciality area in an interesting and unique way. Make sure that people who read your bio will want to follow you.
4. Post regularly and consistently: Many influencers post daily on their social media accounts. The more you post, the more likely people will follow you. Also, make sure that your posts are consistent and possibly follow a theme.
5. Tell an interesting story: Whether it is a photo or a comment that you are posting, use it to tell a story that will catch the attention of your followers and help them connectwith you.
6. Make sure people can easily find your content: Publicize your posts on a variety of social media by hashtags and catchy titles to make sure that they can be easily found. There is no point writing the most exciting blogposts or posting the most attractive photographs if no one is going to see them.
7. Most importantly, if you want to become a social media influencer, you need to have patience. Keep posting and your following will gradually increase. Good luck!
What is the passage mainly about?
Khi thiết kế, yếu tố an toàn thể hiện ở chỗ, màu hổ phách:
Read the following leaflet 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 7 to 12.
TO STAY HEALTHY, BEGIN AT HOME!
Let’s look at what we can do each day to improve our health and well-being.
Facts and Figures:
Over 30% of adults do not get enough physical activity, and (7)_______ spend hours sitting in front of screens, which affects both their physical and mental health.
Positive Actions!
(8)________ your intake of sugary or salty processed foods and opt for healthier alternatives like fruits or nuts.
Focus on (9)________ fresh, nutrient-rich foods rather than heavily processed ones. This not only nourishes your body but also helps the environment by reducing (10)________.
(11)_________ how busy your schedule is, dedicate at least 30 minutes a day to physical activity. Consistency is key!
Start Today!
Small changes can lead to big (12)_______. Make the choice to live a healthier, happier life!
Với con người hai bước của quá trình giải giải quyết một vấn đề là gì?
Read the following passage about Preserving Today's Soundscapes for Future Generations 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 23 to 30.
Sonic time capsules save today's sounds for future people. Scientists capture everyday sounds like streets, birds, and children playing in parks around the world. These recordings help us remember our world before changes. Cities are losing unique sounds as life becomes similar everywhere. Old machines, music, and natural sounds might disappear if not saved. Many important cultural sounds are already lost forever because nobody thought to record them when they still existed.
Sound collectors use microphones to record in different places. They visit forests, oceans, cities, and villages to capture soundscapes throughout different seasons and times of day. They store sounds in digital libraries for years. Museums have rooms for listening to past sounds. These experiences help people understand history in ways books cannot. Some researchers travel to remote locations to record indigenous languages and traditional ceremonies before they vanish from our collective memory.
Climate change is changing world sounds. Melting glaciers, endangered animals, and disappearing languages need saving before they're gone. Researchers believe future people will want to know how our world sounded. These capsules will be important records, like photographs. Scientists study how sounds affect human health. The sounds of nature can reduce stress and improve mental health, which makes preserving natural soundscapes even more important for future generations who may live in highly urbanized environments.
Community projects invite people to record daily sounds. Children learn to listen carefully to the world around them and identify sounds that matter to their community. Old people share recordings from their childhood. People feel emotions when listening to these collections. Artists create music using everyday recordings. These projects help communities protect special sounds for the future. Some cities now have sound preservation policies that protect unique acoustic environments just as they would protect historic buildings or natural landscapes from development.
The word “disappear” in paragraph 1 is OPPOSITE in meaning to _________.