系统高压氮气线阀门公称压力有三种：（）MPa、（）和（）MPa。_爱下问搜题

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系统高压氮气线阀门公称压力有三种：（）MPa、（）和（）MPa。

答案

参考答案：6.4；10；16

完形填空

Do you know what kind of things the young people are reading. More and more 26 and parents have noticed another kind of pollution, which came from the printed papers  27  on streets.
These printed things 28    newspapers but have hardly anything to do with  29 , you can only find reading materials badly made up these—— some are too strange for anyone to 30  ; others are frightening stories of something still worse. However, many of the young readers are getting interested in such   31   reading, which 32   them what they should pay for their breakfast and brings them nightmares(恶梦)and immoral(邪恶的)ideas in return. Homework was left   33 ; daily games lost.
These sellers shout on streets selling their papers well. The writers, publishers and printers, whoever they are, we never know, are 34 their silent money.
The sheep - skinned wolf's story seems to have been forgotten once again. Why not 35  this kind of thing. Yes, both teachers and parents have asked each other for more strict control of the young readers.   36    , the more you want to forbid it, the more they want to have a look at it. Sometimes you may even find out several children, driven by the curious natures,   37  one patched paper, which has traveled from hand to hand.
It really does   38   to our society. It has already formed a sort of moral pollution. The  39  teachers and parents need more powerful support in their protection of the young generation. At the same time the young readers need more interesting books to help them   40   those ugly papers.

C．young people

B．interesting

B．Unfortunately

C．disappointed

单项选择题

透皮吸收促进剂

A．微粉硅胶
B．邻苯二甲酸醋酸纤维素
C．羧甲基淀粉钠
D．氮酮
E．糖浆