皮皮学，免费搜题
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【多选题】
的O2O载体有( )。A.
购
B.
电器
C.
广场
D.
小店
E.
影院
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】— What's that terrible noise? — The neighbours for a party. [ ]
A.
have prepared
B.
are preparing
C.
prepare
D.
will prepare
【单选题】The physicist has made a discovery, _____ of great importance to the progress of science and technology. (TE44-1997-45)
A.
I think which is
B.
that I think is
C.
which I think is
D.
which I think it is
【简答题】电气控制线路中,既装设熔断器,又装设热继电器,各起什么作用?能否相互代用?
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