题目内容

This means they can ensure high levels of ___________ with advanced technology.

A. efficiency
B. efficiencies
C. efficient

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Some enterprises introduced ___________ warehouse which can save time and manpower.

A. automatically
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A. demonstrates
B. demonstrating
C. demonstrated

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A. adaptive
B. adapt
C. adapting

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A. 变宽
B. 变窄
C. 不变
D. 消失