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 本题考查的是对名词的认知。这句话的意思是：化学制剂的使用会对实验室工作人员造成某种危害。D．danger和hazard意思相近，危险、危害。There is a widespread danger of disease in this area．在这个地区疾病有扩散的危险。A．protection：保护、防护，Insurance is a protection against unforeseeable misfortunes．保险是对不可预见的灾难的一种保护措施。B．indication：指示、迹象，Indications of a possible earthquake have been observed．人们观察到一些可能要发生地震的迹象。C．immunity：免疫力，Scientists are studying why some individuals have natural immunity to the disease。科学家们在研究为什么一些人对这种病有先天的免疫力。
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