Cung cấp nhiệt lượng 1,5 J cho một khối khí trong một xilanh đặt nằm ngang. Chất khí nở ra đẩy pittong đi một đoạn 4 cm. Biết lực ma sát giữa pittong và xilanh có độ lớn là 25 N, diện tích tiết diện của pittong là 1 cm². Coi pittong chuyển động thẳng đều. Trong các phát biểu sau, phát biểu nào là đúng, phát biểu nào là sai?

Choose the word that differs from the other three in the position of primary stress in each of the following questions.

Read the passage and choose the correct answer to each of the following questions.

1. In China, there are reports that many older people still believe in rumors and pseudoscience. Pseudoscience means things that are said, like facts, but are not proven by science. Recently, more scientists and people discussing science have been using the internet to fight against pseudoscience. However, it's hard for younger people to tell older people about it.

2. For example, last year, Dingxiang Doctor, a digital platform that revealed medical rumors online, released 101 articles that disproved common, inaccurate claims. However, many netizens said that when they forwarded the articles to family chat groups, they were questioned, scolded, and even removed from the group by older family members. An online survey last year by Tencent, one of China's biggest online businesses, indicated that nearly 40 percent of middle-aged and senior people had experienced online fraud, mainly related to healthcare products.

3. Yun Wuxin, who knows a lot about food and has been teaching about it for over ten years, thinks that older people didn't get training in thinking critically when they were young. So, they trust personal experiences, tradition, or superstition a lot. Young people today, though, have better training and question things more. Yun Wuxin says using new media like short videos, video blogs, and animations is excellent for young people. But older people still find traditional ways like TV, visits by scientists, neighborhood shows, and science columns in newspapers essential to understand science.

(34) According to paragraph 1, what is the mentioned problem of China?

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.

Choose the correct arrangement of the sentences to make a meaningful paragraph/letter in each of the following questions.

a. As a student majoring in Hospitality Management, I am eager to gain practical experience in the field.

b. Dear Mr. Brown, I am writing to express my interest in the part-time waiter position at Sunshine Café as advertised on your website.

c. I considered myself to be organised, enthusiastic, and have good communication skills.

d. Thank you for considering my application.

e. I would appreciate the opportunity to discuss my application in person and am available for an interview any afternoon during the week.

f. Sincerely,

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

After a good night's sleep, people appear more __________ and awake.

Read the following passage and choose the correct answer that best fits each of the following blanks.

Scientists from the State University of New York recently conducted a test that found tiny pieces of plastic in bottled water. (28)_________ examined 250 bottles from nine countries and discovered that more than 90% of them (29)_________ microplastic particles. Sometimes, thousands of these tiny plastic pieces were in a liter of water. Only 17 bottles were plastic-free, with an average of ten plastic particles per liter.

The companies responsible for bottled water claim that their production (30)_________ the highest quality standards. However, scientists and doctors express concerns, even though there is no proof that the smallest plastic particles can harm the body. Most of the plastic is turned into waste and leaves the body through feces.

Apart from bottled water, plastic particles (31)_________ in beer, tap water, seafood, and even in the air. Bottled water is currently the fastest-growing beverage globally, with around $150 billion worth sold worldwide. It is essential for millions of people (32)_________ lack access to safe drinking water.

Choose the best sentence that is written from the words and phrases in each of the following questions.

Generational differences, / shape / by / historical events, / influence / perspectives / various issues.

Choose the correct answer to complete each of the following exchanges.

Dan: Can I assist you with anything during your recovery?

Picky: __________ I appreciate it, but I'm okay.

Choose the answer that is CLOSEST in meaning to the underlined word/phrase in each of the following questions.

Despite generational differences, family members can find common ground when they look up to each other's strengths and qualities.

Read the passage and choose the correct answer to each of the following questions.

1. In China, there are reports that many older people still believe in rumors and pseudoscience. Pseudoscience means things that are said, like facts, but are not proven by science. Recently, more scientists and people discussing science have been using the internet to fight against pseudoscience. However, it's hard for younger people to tell older people about it.

2. For example, last year, Dingxiang Doctor, a digital platform that revealed medical rumors online, released 101 articles that disproved common, inaccurate claims. However, many netizens said that when they forwarded the articles to family chat groups, they were questioned, scolded, and even removed from the group by older family members. An online survey last year by Tencent, one of China's biggest online businesses, indicated that nearly 40 percent of middle-aged and senior people had experienced online fraud, mainly related to healthcare products.

3. Yun Wuxin, who knows a lot about food and has been teaching about it for over ten years, thinks that older people didn't get training in thinking critically when they were young. So, they trust personal experiences, tradition, or superstition a lot. Young people today, though, have better training and question things more. Yun Wuxin says using new media like short videos, video blogs, and animations is excellent for young people. But older people still find traditional ways like TV, visits by scientists, neighborhood shows, and science columns in newspapers essential to understand science.

(33) What is the best title for the passage?

Choose the best sentence that is written from the words and phrases in each of the following questions.

Over the last decade, / Vietnam / see / increased collaboration / fellow ASEAN nations.

Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions.

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

Members of ASEAN __________ work together to address common challenges, and Vietnam must play its part.

Write the correct form of the verbs in brackets.

Last year, my parents visited the place where they first met, ________ about their early days together. (reminisce)

Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions.

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

In the past, many people __________ the impact of human activities on global warming.

Write the correct form of the verbs in brackets.

Scientists are devoted ________ climate change to understand its causes and find solutions. (study)

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

Houses will __________ energy-efficient designs and appliances to reduce environmental impact.

Choose the word that differs from the other three in the position of primary stress in each of the following questions.

Read the passage and choose the correct answer to each of the following questions.

1. In China, there are reports that many older people still believe in rumors and pseudoscience. Pseudoscience means things that are said, like facts, but are not proven by science. Recently, more scientists and people discussing science have been using the internet to fight against pseudoscience. However, it's hard for younger people to tell older people about it.

2. For example, last year, Dingxiang Doctor, a digital platform that revealed medical rumors online, released 101 articles that disproved common, inaccurate claims. However, many netizens said that when they forwarded the articles to family chat groups, they were questioned, scolded, and even removed from the group by older family members. An online survey last year by Tencent, one of China's biggest online businesses, indicated that nearly 40 percent of middle-aged and senior people had experienced online fraud, mainly related to healthcare products.

3. Yun Wuxin, who knows a lot about food and has been teaching about it for over ten years, thinks that older people didn't get training in thinking critically when they were young. So, they trust personal experiences, tradition, or superstition a lot. Young people today, though, have better training and question things more. Yun Wuxin says using new media like short videos, video blogs, and animations is excellent for young people. But older people still find traditional ways like TV, visits by scientists, neighborhood shows, and science columns in newspapers essential to understand science.

(35) The word “they” in paragraph 2 refers to ____________.