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【单选题】
在下列关于Modem(调制解调器)和Codec(编码解码器)的说法中,错误的是______。
A.
Modem和Codec是同一种设备的两个名称
B.
Modem和codec都是物理层设备
C.
Modem的解调器和Codec的编码器都是将模拟信号转换成数字信号
D.
Modem的调制器和Codec的解码器都是将数字信号转换成模拟信号
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【多选题】下列说法,正确的是
A.
党员不但要在组织上入党,而且要在思想上入党
B.
毛泽东创造了全党通过批评与自我批评进行马克思列宁主义思想教育的整风形式
C.
知识分子要同工农相结合
D.
中国的武装斗争,是无产阶级领导的以农民为主体的革命战争
【单选题】What were Forrest Gump's problems when he was born?
A.
His mother regards him as a normal child and tells him that he is the same as the other boys.
B.
Gump is almost a representative of all the virtues : honesty and trustworthiness , serious work , courage fearless .
C.
People always think this kind of person can't be successful in doing anything.
D.
Gump was born with a lower IQ-75 , meanwhile he has a muscle problem.
【多选题】The Story of Money.mp4 What were the problems with barter?
A.
The items were of the similar value
B.
Many items got rotten
C.
Some items were too heavy
D.
Items become more and more complicated
【单选题】What problems were there at the beginning?
A.
The hardware caused them problems.
B.
Some of the computers were old.
C.
The learners didn't have computers.
D.
The learners had technical difficulties.
【单选题】披头士是哪个国家的摇滚乐队?
A.
美国
B.
英国
C.
德国
D.
法国
【判断题】杠杆百分表是把杠杆测头的位移(杠杆的摆动),通过机械传动系统转变为指针在表盘上的偏转。( )
A.
正确
B.
错误
【单选题】Can you solve such problems ___raised by the audience?
A.
what were
B.
as were
C.
that were
D.
which were
【判断题】直流电动机电刷和换向器的作用是使电枢绕组内的直流电变换为交流电。
A.
正确
B.
错误
【判断题】直流电动机换向器和电刷的作用是使直流电动机定向旋转。
A.
正确
B.
错误
【单选题】把数据环境设计器中表或视图的字段拖动到表单中,Visual FoxPro 将根据字段类型添加相应的控件,则备注型字段对应的控件类型为( )。
A.
一个标签或一个文本框
B.
一个标签和一个图像
C.
一个标签和一个编辑框
D.
一个图像
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