问题
选择题
2006年12月 我国科学家在世界上首次完成SARS病毒灭活疫苗I期临床研究.大学生兰正文成为注射SARS疫苗第一人.注射疫苗属于预防SARS流行的( )环节.
A.控制传染源
B.保护易感人群
C.切断传播途径
D.以上都对
答案
答案:B
2006年12月 我国科学家在世界上首次完成SARS病毒灭活疫苗I期临床研究.大学生兰正文成为注射SARS疫苗第一人.注射疫苗属于预防SARS流行的( )环节.
A.控制传染源
B.保护易感人群
C.切断传播途径
D.以上都对
答案:B
Read the following materials, and from A, B, C and D, choose the one that is suitable for the demands of each person from 77 to 80 Sam, Mr. Read, Miss Hope and the Kings each want to decide on an advertisement to answer. Read the following descriptions and help them make proper choices. ( ) 77. Sam will spend his holiday in Hawaii where there is lots of sunshine. Maybe he needs to buy something to protect his eyes. ( ) 78. Mr. Read has been out of work for weeks, and he feels very upset and don’t know what to do. ( ) 79. Miss Hope is always ready to help others. She is a nurse and can speak good English. ( ) 80. The Kings have just moved into a new house. They need to buy something to clean the floor and the carpet.
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