题目内容：
A.提高传输速率B.降低成本
C.降低信号干扰程度
D.好看
参考答案：
选择题：绞线由两个具有绝缘保护层的铜质导线按照一定密度互相绞在一起组成,这样可以()
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- 题目类型：选择题
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When we ______ the museum is not decided. A. visitedB. visit C. will visitD
When we ______ the museum is not decided. A. visitedB. visit C. will visitD
报文交换特性描述中,正确的是()
报文交换特性描述中,正确的是()
Damage to cargo caused by fumes or vapors from liquids,gases,or solids is known as ______.
Damage to cargo caused by fumes or vapors from liquids,gases,or solids is known as ______.
肺活量异常的标准为实测值／预测值 ( )A.<85% B.<65% C.<95% D.<90%E.&l
肺活量异常的标准为实测值／预测值 ( )A.<85% B.<65% C.<95% D.<90%E.&l
HDSL中文名称为()
HDSL中文名称为()