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问题 多项选择题

塑料绝缘导线包括聚氯乙烯绝缘导线、( )和丁腈聚氯乙烯复合物绝缘软线。

A．玻璃丝纺织橡皮和绝缘导线

B．氯丁橡皮绝缘线

C．聚氯乙烯加护套线

D．聚氯乙烯绝缘软线

答案

参考答案：C,D

单项选择题

The Internet is a (66) network of networks which interconnects (67) ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes - long distance collaborations, retrieving free software and documents, (68) library catalogs, (69) in t6 supercomputers - the list of current Internet activities and (70) is large and the range of possible future applications is as unlimited as our imagination.

A．database

B．gateway

C．router

D．computers
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单项选择题

中 * * 党人的一贯主张和发展中国特色社会主义的重大任务是（）

A.实现人民当家作主

B.实现社会公平正义

C.实现经济高速发展

D.实现社会和谐稳定
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