第一章测试
1. An outbreak of a contagious disease that spreads rapidly and widely. ( )
A:sanitation B:epidemic C:hypertension D:bio-statistics
答案:B
2.A condition or practice conducive to the preservation of health,as cleanliness. ( )
A:hygienic B:hygiene C:hygienically D:environment
答案:B
3. A watch kept over a person,group,etc.,especially over a suspect, prisoner, or the like.( )
A:surveillance B:surveillant C:supervise D:surveille
答案:A
4.The period of time during which a person or animal that has a disease or that might have a disease is kept away from others to prevent the disease from spreading. ( )
A:quarantine B:quantum C:isolation D:quantity
答案:A
5.The death of large numbers(as of people or animals). ( )
A:morbidity B:mortality C:probability D:chance
答案:B

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