题目内容
Research shows that people feel unhappy and worried when they have nothing to do. , the happiest are those who are busy.
A.In short B.In fact C.As a result D.For one thing
B
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题目内容
Research shows that people feel unhappy and worried when they have nothing to do. , the happiest are those who are busy.
A.In short B.In fact C.As a result D.For one thing
B
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