As we all know．life is hard for any of us. If we live happy life，we must all work harder.

发布时间：2020-08-16 07:52:21

As we all know．    life is hard for any of us. If we live     happy life，we must all work harder.
A. ／：／
B. ／；a
C. a；／
D. a；a

网友回答

A. ／：／
(答案→)B. ／；a
C. a；／
D. a；a
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