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【多选题】
“守岁”之俗由来已久,下列属于“守岁”习俗的称谓有( ) 选择一项或多项:
A.
分岁
B.
C.
馈岁
D.
别岁
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A.
Hang out with his friends
B.
Invite his friends to fly kites
C.
Look down upon poor people
D.
Set some's house on fire
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A.
licensing company
B.
franchising company
C.
strategic alliance
D.
foreign subsidiary
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【单选题】已知数列{a n }的前n项和 S n = a n -1(a≠0) ,那么数列{a n }(  )
A.
一定是等比数列
B.
一定是等差数列
C.
是等差数列或等比数列
D.
既不是等差数列也不是等比数列
【简答题】For Conversation Press # 1 I’ve got a cell phone, e-mail and voice mail. But why am I so lonely? A funny thing happened on the way to the communications revolution: we stopped talking to one another. ...
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