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【单选题】
所谓原子轨道是指A.
一定的波函数
B.
一定的电子云
C.
核外电子的概率
D.
某个径向分布函数
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【单选题】My uncle has just _______abroad. He won’t come back this month.
A.
gone to
B.
gone
C.
been
D.
been to
【简答题】简述长尾理论的基本原理。
【单选题】下列属于资本市场的特点的是( )。
A.
偿还期短、流动性强、风险小
B.
偿还期短、流动性小、风险高
C.
偿还期长、流动性小、风险高
D.
偿还期长、流动性强、风险小
【简答题】简述长尾理论的基本原理
【简答题】简述长尾理论的基本原理。
【单选题】My uncle the club in 2010. He t he club for over 3 years.
A.
joined; has been a member of
B.
joined; has joined
C.
has joined; has joined
D.
has joined; has been in
【单选题】My uncle has never been to a foreign country, ( )?
A.
has he
B.
does he
C.
hasn't he
D.
doesn't he
【单选题】My uncle _____ the Party in 1986. He _____ for over 20 years. [ ]
A.
joined, has been a Party member
B.
joined, has joined the Party
C.
has joined, has joined the Party
D.
has joined, has been in the Party
【单选题】My uncle has never been to Beijing, __________?
A.
has he
B.
hasn't he
C.
does he
D.
doesn't he
【单选题】My uncle ____the golf club for two years. [ ]
A.
has joined
B.
has been in
C.
has gone to
D.
has been to
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