由于近年来的市场变化，上海居民使用自来水的价格已明显低于供排

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由于近年来的市场变化，上海居民使用自来水的价格已明显低于供排水企业运营成本，为此有关方面提出2种提价的方案。一种为单一制调价，即统一由现行的1.4元/m3提价为2.8元/m3，另一种为阶梯式累进制调价（具体方法见表）。主张阶梯式累进制调价的人，认为该方案具有以下优点（）

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You can easily good idea __________ him. Zhu Zhiwen, who usually wears an old yellow coat, among other actors.

A．pick up	B．pick out
C．cut down	D．cut off

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A．happened	B．occurred
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A．happened	B．occurred
C．struck	D．appeared

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