The use of the chemical may present a certainhazard to the laboratory workers.

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问题 The use of the chemical may present a certainhazard to the laboratory workers.

选项 A、protection
B、indication
C、immunity
D、danger

答案D

解析 本句话的意思是: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选项符合。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,例如:diplomatic immunity.外交豁免权。
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