理工类-词汇选项（11月23日）_职称英语网校

单选题

Decibels（分贝）measured in water are different from those measured on land. A noise of one hundred-twenty decibels on land causes pain to human ears. In water, a decibel level of one-hundred ninety-five would have the same effect.

Which of the following is discussed in the paragraph?

A、The same noise level produces a different effect on land and in the ocean.

B、Different places may have different types of noises.

C、The decibel is not a suitable unit for measuring underwater noise.

D、Different ocean animals may have different reactions to noises.

【正确答案】 A

【答案解析】 本段第一句话就直接给出了答案。

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