思维的主要特征为(  )。

思维的主要特征为(  )。A.间接性和概括性 B.分析性和概括性 C.间接性和整合性 D.分析性和整合性

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声音的质量特征称为(  )。

声音的质量特征称为(  )。A.音强 B.音高 C.音色 D.音波

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The doctor tried to get the answer________.

The doctor tried to get the answer________.A.why certain people age sooner than

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Peter is experiencing a difficult time in his life.

Peter is experiencing a difficult time in his life.A.going into B.going out of C

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