What does "clear-air turbulence" probably mean? (Paragraph 1) We can infer from the fifth paragraph that

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问题 What does "clear-air turbulence" probably mean? (Paragraph 1)
We can infer from the fifth paragraph that

选项 A、the lidar detector can successfully forecast turbulence.
B、researchers are not sure about the effectiveness of the lidar detector.
C、passenger planes will be used in further experiments.
D、no more test flights are needed.

答案A

解析

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本试题收录于：职称英语理工类B级题库职称英语分类

职称英语理工类B级

职称英语

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What does "clear-air turbulence" probably mean? (Paragraph 1) We can infer from the fifth paragraph that

职称英语理工类B级

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