【单选题】【消耗次数：1】
晶闸管的导通控制信号由触发电路提供。
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正确
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错误
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— We have to stop talking here. Listen, _____!
—Hurry up, or we’ ll be late.
①
There goes the bell
②
There does the bell go
③
There the bell goes
④
Goes the bell there
【单选题】
Even if his letter ____ tomorrow, it ____ too late to do anything.
①
will arrive...is
②
should arrive...were
③
arrives...will be
④
arrives...would be
【单选题】
— The water changes into thick ice covering rivers and lakes
in winter in Harbin.
—_____ in Urumqi and children go skating on it then.
①
So is it
②
So it does
③
So it is
④
So does it
【单选题】
You’ ll have to____ your wrongdoing one day.
①
answer for
②
answer to
③
ask for
④
allow for
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Classification is a useful ____ to the organization of knowledge in any field.
①
means
②
approach
③
mode
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manner
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We will be losing money this year unless that new
economic plan of yours ____ miracle.
①
is working
②
works
③
will be working
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worked
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The population of the world ______ still _____ now.
①
will; grow
②
have; grown
③
is ; growing
④
is ; grown
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It takes a lot of ____ to put on a school play such as
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①
organization
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arrangement
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management
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preparation
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You are ____ to have had the help of such a man.
①
thoughtful
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considerate
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fortunate
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moderate