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【单选题】
I/O模块测控端口的类型,一般不包括( )。A.
模拟量输入、输出
B.
控制线圈得电
C.
电阻信号输入
D.
数字量输入、输出
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举一反三
【单选题】— — I'm afraid not. But I'll be free this afternoon.
A.
Is there any vacancy in your company?
B.
Do you have the time?
C.
Can you spare me a few minutes now?
【单选题】Thanks to the ________ of air transport, everyone is free to go anywhere at any time.
A.
effectiveness
B.
efficiency
C.
efficient
D.
effective
【单选题】I _____ to help you but I was not able to spare any time. I _____a paper last night and I’ll have to finish it today.
A.
wanted; have been writing
B.
had wanted; was writing
C.
had wanted; wrote
D.
have wanted; wrote
【单选题】It's _____ book that I keep _____ it in my free time. [ ]
A.
so a meaningful; reading
B.
such a meaningful; read
C.
so a meaningful; read
D.
such a meaningful; reading
【单选题】I ________ to help you with your homework, but I couldn’t spare any time. I ________ a composition last night and I’ll finish it today.
A.
wanted; wrote
B.
had wanted; was writing
C.
have wanted; wrote
D.
wanted; have been writing
【简答题】I hope you like my book and please feel free to make any comments and suggestions(翻译)
【单选题】I _____ to help you to do homework but I couldn’t spare any time. I _____ a composition last night and I’ll finish it today.
A.
wanted; wrote
B.
had wanted; was writing
C.
have wanted; wrote
D.
wanted; have been writing
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