______there is little we can do to modify the weather, we can at least know what kind of weather to expect.

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问题 ______there is little we can do to modify the weather, we can at least know what kind of weather to expect.

选项 A、Before
B、Unless
C、As soon as
D、While

答案D

解析 句意:我们现在很难做到改变天气,但至少我们能了解预期的天气状况。while在此作并列连词,意为“而,却”,表示对照关系。故选D。
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