皮皮学，免费搜题
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【单选题】
在给定一定物质的量的理想气体,影响其所占体积大小的主要因素是 ( ) A .分子直径的大小 B. 分子间距离的大小 C .分子间引力的大小 D .分子数目的多少A.
分子直径的大小
B.
分子间距离的大小
C.
分子间引力的大小
D.
分子数目的多少
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皮皮学刷刷变学霸
举一反三
【单选题】— David, look at the man in white over there. Can you tell me _____? — He is a doctor. [ ]
A.
Who is he
B.
who he is
C.
what is he
D.
what he is
【单选题】— Look at the boy running on the ground, Is it David? — It _____ be him, he has just gone to the teacher's office. [ ]
A.
must
B.
can't
C.
could
D.
may
【单选题】--David, look at the man in the over there. Can you tell me____? - -He is a doctor.
A.
who is he
B.
who he is
C.
what does he do
D.
what he does
【简答题】v. to fail to take care of sb/sth; to not give enough attention to sth
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