The conference aims to develop business and let people think about they can have apositiv

发布时间：2020-08-16 09:55:16

The conference aims to develop business and let people think about      they can have a positive influence on the planet．
      
A. why
B. that
C. what
D. how

网友回答

A. why
B. that
C. what
(答案→)D. how
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