The word “it” in paragraph 3 refers to________

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

In December 2019, a number of pneumonia cases were reported in Wuhan, eastern China. The pneumonia is associated with a new type of coronavirus. This virus has now spread to other cities in China. There have also been cases in other countries around the world. Coronaviruses get their names because they look like crowns under the microscope. This group of viruses causes diseases in humans and other animals, including pigs and chickens. It is thought that the new coronavirus outbreak started in a market in Wuhan, which sold meat and live animals. Scientists say that the virus is not closely related to any human virus currently known. The World Health Organization has told countries around the world to track respiratory infections in their populations. There is currently no vaccination against the corona virus.

The Wuhan coronavirus outbreak is similar to the 2002-03 epidemic of SARS coronavirus. This outbreak, which started in south China, spread to 37 countries, causing 8,098 people to become ill and 774 to die. Nearly 10% of people who were infected with SARS died. The deadly nature of the disease, the frequent human-to-human spread, and infection of hospital staff contributed to the seriousness of the outbreak. SARS was traced to several types of wild animals, which were sold as food in markets. The infected animals had no symptoms. The outbreak was stopped by closing markets and killing animals, and by treating and isolating patients. SARS has not been seen since 2003 and it is thought that the virus has now disappeared.

There are seven coronaviruses known to infect people, including the new Wuhan coronavirus and SARS. Other human coronaviruses are those that cause the common cold, as well as the deadly MERS virus. MERS is a common cold virus that often jumps from camels to humans in the Middle East. It can cause severe pneumonia in people and spread from person to person. MERS was identified in 2012 and continues to be a significant problem in the Middle East. Nearly 2,500 cases of MERS have been identified, causing 858 deaths.

How the new Wuhan coronavirus came to be in humans, and how closely it resembled the SARS outbreak will be a focus of ongoing research. Outbreaks of new viruses, such as the Wuhan coronavirus, are a reminder of the need to invest in research in virus biology and evolution, how viruses infect and interact with human cells, and most importantly, to identify safe and effective drugs to treat or vaccines to prevent serious disease.

Câu 417078: The word “it” in paragraph 3 refers to________

A. SARS coronavirus

B. MERS coronavirus

C. Wuhan coronavirus

D. Covid-19

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Câu hỏi : 417078

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Phương pháp giải:

Kiến thức: Đọc hiểu

Đáp án : B
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Giải chi tiết:
Từ “it” trong đoạn 3 đề cập đến _______.

A. SARS coronavirus

B. MERS coronavirus

C. Vũ Hán coronavirus

D. Covid-19

Thông tin: MERS is a common cold virus that often jumps from camels to humans in the Middle East. It can cause severe pneumonia in people and spread from person to person.

Tạm dịch: MERS là một loại virus cảm lạnh thông thường mà thường lây nhiễm từ lạc đà sang con người ở Trung Đông. Nó có thể gây viêm phổi nặng ở người và lây lan từ người này sang người khác.

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