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【单选题】
下列哪项实验不能证明光的波动性?()A.
干涉
B.
衍射
C.
共振
D.
光电效应
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反馈参考答案：
举一反三
【单选题】Night-shift workers are those who ______．
A.
have to pay on their internal clock
B.
need to re-adjust their clock
C.
fall asleep late at night
D.
have to work at night
【单选题】I know you’re not feeling your best after last night . . .
A.
you’re not in your right mind
B.
you’re very ill
C.
you aren’t feeling well
D.
you’re in a bad mood
【单选题】If you’re sitting around a lonely campfire at night, the howl of a wolf can sound pretty ______.
A.
fearful
B.
threatening
C.
dreadful
D.
frightening
【简答题】如下,( )是与逻辑关系表达式,( )是与非逻辑表达式,( )是非逻辑关系表达式。 (a) (b) (c) (d) (e) (f)
【简答题】简述无檩屋盖结构体系和有檩屋盖结构体系的特点。
【单选题】We're talking about the piano and the pianist _____ were in the concert we attended last night. [ ]
A.
which
B.
whom
C.
who
D.
that
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