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副交感神经对体循环的主要作用是影响(  )
出入肝门的结构是(  )
Which of the following shows that a person is NOT dreaming in his sleep?
The subject of this passage is ________.
Which of the following is the best title of the article?

问题:

[单选]

A . combine
B . complain
C . comprise
D . complex

问题:

[单选]

A . procession
B . professor
C . mission
D . pressure
The reason why all the solar energy falling on the earth can’t be utilized is that ______.

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