题目内容

What message does it give if a person keeps his hands straight down to the side of his body?

A. He is friendly.
B. He is childlike.
C. He is confident.
D. He is uncertain.

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What may it mean if a person makes too much eye contact?

A. He seems direct.
B. He seems excited.
C. He seems aggressive.
D. He seems open-minded.

What point does the speaker make at the end of the passage?

A. Body language is always easy to understand.
Body language can always tell us what people think.
C. Body language should be used to express exact meaning.
D. Body language may have different meanings in different cultures.

在弯矩图的拐折处,梁上必对应(_)

若梁中某段内各截面弯矩为0,则剪力为()

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