QUẢNG CÁO
Câu hỏi trắc nghiệm (10 câu):
-
- A. has been waited
- B. has waited
- C. have waited
- D. have been waited
-
- A. has had
- B. have had
- C. had
- D. have been had
-
- A. sat
- B. have sat
- C. has sat
- D. is sitting
-
- A. has had
- B. have had
- C. had
- D. is having
-
- A. experienced
- B. have experience
- C. has experienced
- D. is experiencing
-
Câu 6: Read the text carefully and then choose the correct answers In a study released early on the JAMA web site, researchers from the University of Toronto and hospitals in the area describe the rapid spread of the coronavirus that causes severe acute respiratory syndrome (SARS). Beginning with a single patient at a community hospital who acquired the virus from another family member who had traveled to China, health care workers became infected. Further spread occurred as patients were transferred among hospitals before the source of inflections and the nature of SARS were identified. Laboratory product companies are working on a test that could be used to diagnose SARS quickly. Many - drug companies are ready working on a SARS vaccine. Even if a vaccine is found, it will surely take several years before it is available for wide public distribution.
Which causes SARS?
- A. HIV
- B. coronavirus
- C. tuberculosis
- D. mumps
-
- A. A patient acquired the virus from his family member who had travelled to China.
- B. some Chinese tourists visited Toronto.
- C. China sent the virus to Toronto.
- D. Toronto has no vaccine.
-
- A. there is only one patient of SARS
- B. some doctors and nurses in hospitals have been infected
- C. there have been many patients of SARS
- D. B and C
-
- A. They are doing nothing.
- B. They are keeping away from SARS.
- C. They are working on a test used to diagnose SARS quickly.
- D. They found the Vaccine years ago.
-
Câu 10:
If a vaccine is found ________.
- A. we can use it immediately
- B. it is available for wide public distribution immediately
- C. it will take several years before it is available for wide public - distribution
- D. it cannot be used
ADMICRO
ADMICRO
NONE
