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【简答题】
TON、TONR、TOF分别表示什么定时器()定时器、()定时器、()定时器。
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反馈参考答案：
举一反三
【简答题】One pair of scissors ( ) is/are not enough.
【单选题】This pair of scissors__ _ __ sharper than that one.
A.
are
B.
have been
C.
is
D.
has been
【简答题】简述电能计量装置停电检查的前提与内容。
【简答题】One day a tailor in Duluth, Minnesota, was busy mending an old coat, repairing some holes and a place where it was torn, when he suddenly heard a low, threatening sound at his open door. He looked up ...
【单选题】Which of the following statements is INCORRECT?
A.
The United States is a country with varied origins.
B.
My mathematics are rather shaky.
C.
The Straits of Gilbraltar have not lost the strategic importance.
D.
One pair of scissors aren't enough.
【单选题】—What do you want to do for vacation? —I _______ my grandmother. [ ]
A.
visit
B.
am going to visit
C.
visited
D.
visiting
【单选题】One pair of scissors ____________ enough.
A.
isn’t
B.
aren’t
C.
haven’t been
D.
hadn’t been
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