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【判断题】
使用 DRAWORDER 命令降低了显示速度
A.
正确
B.
错误
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【单选题】听力原文:M: Hello? W: Hello, Alan. This is Lucy. I'm in trouble. M: What happened? W: I'm afraid I won't be on the flight this afternoon. I got blocked in a traffic jam on the way to the airport and, by t...
A.
It had been cancelled when she arrived at the airport.
B.
She arrived at the airport too late to catch her flight.
C.
The plane was full when she arrived at the airport.
D.
She didn't have enough money to buy a ticket for the flight.
【单选题】运算放大器电路如图所示,输入电压 u i = 2V ,则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
【单选题】7类布线系统采用( )方式连接时,连接图应符合相关标准规定。
A.
RJ11
B.
RJ12
C.
RJ45
D.
非RJ45
【单选题】运算放大器电路如图所示 , 输入电压 u i = 2V , 则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
【单选题】运算放大器电路如图所示,输入电压U i =2V,则输出电压U o 等于()
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
【单选题】听力原文:M: I think the logic course is very interesting, but it's very difficult. I'm afraid I can't get through the reading list. W: Don't worry, you'll find the time somehow. Why is the man worded?
A.
He has failed in the logic examination.
B.
He must read a lot of books set by his logic teacher.
C.
He can't get the books he needs.
D.
He is lagging behind his classmates in studies.
【单选题】下列哪项不是患儿进行运动疗法的高危因素( )
A.
癫痫
B.
心脏病
C.
肺功能不全
D.
严重贫血
E.
佝偻病
【简答题】先学习”零比特插入法“,再做对应习题:---- -请写出011111111111111111011111进行零比特插入法后的二进制位串。
【单选题】—Could you finish the task in three days? — _____.  I have something else to do these days. [     ]
A.
  I'm afraid so
B.
  I'm afraid not
C.
  Yes, I think so
D.
  I hope it
【简答题】灭火器中所填充的灭火剂主要有哪几种?
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