A、A storm can hardly change the direction of an ocean current. B、The loss of sneakers in the storm put the company in the financ

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问题  

选项 A、A storm can hardly change the direction of an ocean current.
B、The loss of sneakers in the storm put the company in the financial difficulty.
C、Not all useful experiments are planned ahead of time.
D、Computers cannot always predict the effects of ocean storms.

答案C

解析
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