题目内容

水泵的流量是指水泵在单位时间内从进水管进入水泵的水量。

A. 对
B. 错

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水泵的流量与其效率没有任何关系

A. 对
B. 错

Many stores give customers () to attract them to come back and purchase again.

A. affiliate
B. relavance
C. coupons
D. commission

The () rate of AliExpress is either 5% or 8% depending on the product category.

A. coupon
B. commission
C. corresponding
D. relevance

Summer is () for traveling.

A. prime time
B. comsumer perception
C. bidding price
D. in advance

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