A-A+
The use of the chemical may present a certain
问题详情
The use of the chemical may present a certain hazard to the laboratory workers.
A.protection
B.indication
C.immunity
D.danger
参考答案
正确答案:D
解析:本句意思:化学物质的使用会给实验室的工人带来一定的危险。hazard是危险的意思,只有D项符合。protection:保护。例如:consumer protection消费者保障。indication:指示,迹象。例如:There is every indication of a change in the weather.各种迹象表明天气很可能发生变化。immunity:免除,豁免。如:diplomatic immunity外交豁免权。