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【简答题】
若单片机的晶振为6MHz,单片机的机器周期为( )。
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【简答题】The person behind you constantly kicks the back of your seat．Your talkative seatmate doesn’t understand your need for sleep．And the aircraft’s bathroom is a total mess．These situations can make even a...
【简答题】报警阀的作用是什么?目前在自动喷水灭火系统中常用的报警阀主要有哪几种类型?
【单选题】Little _______ what you said. I wish you repeated it.
A.
I understand
B.
did I understand
C.
I did understand
D.
have I understood
【单选题】The tourist trade is booming. With all this coming and going, you'd expect greater understanding to develop between the nations of the world. Not a bit of it! Superb systems of communication by air, s...
A.
tourism contributes nothing to increasing understanding between nations
B.
tourism is tiresome
C.
conducted tour is dull
D.
tourism really does something to one's country
【单选题】Would you mind _____ it again? Try to make yourself ______. [ ]
A.
say, understood
B.
to say, understand
C.
saying, understand
D.
saying, understood
【简答题】阅读理解。 If you can speak English, you know a lot of English words. You can read, speak and understand. But there is another kind of language you need to know- the language of the body. All over the worl...
【单选题】The tourist trade is booming. With all this coming and going, you'd expect greater understanding to develop between the nations of the world. Not a bit of it! Superb systems of communication by air, s...
A.
Tourism contributes nothing to increasing understanding between nations
B.
Tourism is tiresome
C.
Conducted tour is dull
D.
Tourism really does something to one's country
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