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【单选题】
下列哪项不是对离合器的要求
A.
由主动部分和从动部分组成
B.
利用液力作为传动介质
C.
主、从动部分可暂时分离
D.
主、从动部分可相对运动
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【判断题】哲学社会科学类社会调查报告和学术论文可以作为作品申报“挑战杯”全国大学生课外学术科技作品竞赛。
A.
正确
B.
错误
【单选题】the binary numbers for 10(D) is:
A.
10
B.
1000
C.
1001
D.
1010
【单选题】Which on is NOT the reason that why Do Computers Use Binary Numbers?
A.
A computer is built with many connections and components, which are used to transfer and store data, as well as communicate with other components. Most of that storing, transferring, and communicating happens with digital electronics.
B.
It's easy to use 1 to reprent an “on” state—represented by negative charge, and use 0 to represent an “off” state—represented by a positive charge.
C.
A signal with a series of ON/OFF pulses is equal to a binary number.
D.
It's easy for human beings to read and understand.
【单选题】外存与内存有许多不同之处,外存相对于内存来说,以下叙述 不正确。
A.
外存不怕停电,信息可长期保存
B.
外存的容量比内存大得多,甚至可以说是海量的
C.
外存速度慢,内存速度快
D.
内存和外存都是由半导体器件构成
【单选题】对婴幼儿认知能力发展的情况了解,是通过( )观察、分析的。
A.
上课中
B.
测试中
C.
日常生活中
D.
游戏中
【单选题】Which words may be heard in the situation above?
A.
“Yes, I do”
B.
“Happy birthday!”
C.
“I am so sorry!”
【判断题】The serial interface transfers 8 bit binary numbers at a time .
A.
正确
B.
错误
【多选题】内存与外存有许多不同之处,内存相对于外存来说,以下叙述正确的是
A.
内存可被CPU直接访问,而外存不行
B.
内存的信息可长期保存
C.
运行一个程序文件时,它被装配入内存中
D.
内存速度慢,外存速度快
【单选题】Binary numbers need more places for counting because
A.
They are always big numbers
B.
Any no. of 0's can be added in front of them
C.
Binary base is small
D.
0's and l's have to be properly spaced apart
【判断题】(True or False) Repeated division-by-10 can be used to convert decimal numbers to binary numbers.
A.
正确
B.
错误
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