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【单选题】
电在导线里的传播速度和电磁波在空中的传播速度哪个快？（ ）A.
电磁波在空中的传播速度快
B.
电在导线里的传播速度快
C.
二者一样快
D.
电在电阻较大的导线里的传播速度比电磁波慢
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皮皮学刷刷变学霸
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【单选题】The driver was at_________loss When ________word came that he was forbidden to drive for speeding.
A.
a；the
B.
/；/．
C.
the；the
D.
a；/
【单选题】The monitor suggested that we ______ for a picnic.
A.
went
B.
must go
C.
could go
D.
go
【单选题】With temperature ______ so rapidly, we could not go with the experiment.
A.
fall
B.
falling
C.
fallen
D.
to fall
【简答题】We could take the train or __________ go by car． [A]alternatively [B] alternately [C] instead [D] oppositely
【单选题】The driver was at ___ loss when ___ word came that he was forbidden to drive for speeding. [ ]
A.
a ; the
B.
/ ; /
C.
the ; the
D.
a ; /
【单选题】With temperature ______ so rapidly, we could not go on with the experiment.
A.
fell
B.
fall
C.
falling
D.
fallen
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