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发布时间: 1970-01-01

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1最佳选择题 3分

Whichofthefollowingistrueofwhales?

  • A. They won't be confused by noises.
  • B. They are deaf to noises.
  • C. Their ability to reproduce will be lowered by high-level noises.
  • D. Their hearing will be damaged by high-level noises.
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正确答案: -

本题解析: 暂无解析

2最佳选择题 3分

Accordingtothepassagewhatwillscientistsmostprobabl

  • A. They will work hard to reduce ocean noise pollution.
  • B. They will protect animals from harmful noises.
  • C. They will try to set a limit of 120 decibels.
  • D. They will study the effect of ocean noise pollution.
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本题解析: 暂无解析

3最佳选择题 3分

Accordingtothepassagenaturalsoundsincludeallofthef

  • A. sounds made by animals themselves.
  • B. ocean drilling.
  • C. underwater earthquakes.
  • D. the breaking of ice fields.
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本题解析: 暂无解析

4最佳选择题 3分

Whichofthefollowingisdiscussedinthethirdparagraph?

  • 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.
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本题解析: 暂无解析

5最佳选择题 3分

Accordingtothepassagewhichofthefollowingisincreasi

  • A. The sound of a car.
  • B. The sound of voices.
  • C. Man-made noise pollution.
  • D. The sound of steps.
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本题解析: 暂无解析

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