Một ấm nhôm có khối lượng 400 g chứa 0,6 lít nước đang ở nhiệt độ 30 ^oC. Biết nhiệt dung riêng của nhôm và nước lần lượt là c₁ = 880 J/kg.K; c₂ = 4200 J/kg.K. Nhiệt lượng tối thiểu để đun sôi nước trong ấm là

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

Vietnam __________ an ASEAN Summit yet, but it aspires to do so in the future.

Write the correct form of the words in brackets.

The use of _________ materials in house construction will be a priority for eco-friendly living. (sustain)

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.

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

Despite the challenges, we should never quit __________ our dreams and aspirations.

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 fill in the blank in each of the following questions.

Family conflicts can be __________ through open and honest communication.

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

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.

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 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.

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.

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

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

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

Innovative waste management systems will promote recycling and reduce environmental impact.

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.

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.