. being very convenient to shoppers, plastic bags also cause serious white pollution.A. Be

发布时间：2020-08-16 09:35:42

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     being very convenient to shoppers, plastic bags also cause serious white pollution.
A. Because
B. Since
C. While
D. If

网友回答

A. Because
B. Since
(答案→)C. While
D. If
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