压力管道的基本原理是利用介质本身的压力，或者（）的动力，是输

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问题单项选择题

压力管道的基本原理是利用介质本身的压力，或者（）的动力，是输送的介质从开始端流向终点。

A、介质自重

B、介质流动惯性

C、外界动力

D、介质热胀冷缩膨胀

答案

参考答案：C

填空题

根据短文内容及首字母提示，填写所缺单词，使短文意思完整。

A generation gap (代沟) has become a serious problem . I read a m 1 about it in the newspaper .

Some children have killed themselves after quarrels (争吵) with p 2 . I think this is because they don't

often have a talk with each other . Parents now s 3 more time in the office, s 4 they don't have much

time to stay with their children. As time passes , they both feel that they don't have the s 5 topics (话题) to

talk about. I want to tell parents to be more with your c 6 , get to know them and u 7 them . And for

children , show your f 8 to your parents . They are the people who love you . So t 9 them your

thoughts (想法). In this way, you c 10 have a better understanding of each other .

单项选择题 B1型题

《素问·标本病传论》认为“治得为（）”

A.正

B.误

C.逆

D.从

E.顺