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In doing scientific experiments one must be _______ careful with the instruments.
A.other thanB.rather thanC.less thanD.more than
D
考查短语辨析。other than 除了,rather than 而不是,less than 少于,more than 超过,非常,句意:在做科学实验中,一个人必须非常小心对于仪器。所以选D。
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