2. 外语
  3. The use of the chemical may present a certain hazard to the laboratory workers.

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

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问题 The use of the chemical may present a certain hazard to the laboratory workers.
选项 A、protection
B、indication
C、immunity
D、danger
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。
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