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问题 单项选择题

SY/T0402—2000《石油天然气站内工艺管道工程施工及验收规范》标准要求兰间连接应保持平行，偏差不大于法兰外径的（），且不大于2mm。

A.1.5‰

B.1.0‰

C.0.5‰

D.1.2‰

答案

参考答案：A

单项选择题

A group of frogs were traveling through the forests, but unluckily two of them fell into a hole. The other frogs tried to help them. When they saw how (16) the hole was, they cried to the two frogs that they could not be saved. The two frogs didn’t (17) and tried their best to jump up out of the hole. The other frogs (18) saying that they were sure to die. (19) ,one of the two frogs, who heard what the other frogs were saying, (20) ,then he fell down and died.
The other frog, however, (21) to jump as hard as he could, and at last made it out. When he (22) , the other frogs asked, "Didn’t you hear us" The frog, who had a poor (23) , explained, "I thought you were encouraging me all the time. "
The story teaches us a (24) : There is power(力量) of life and death in the tongue. An (25) word to those who are down can help them out while a discouraging word can kill them.

Ⅱ. 完形填空/Cloze

A．happened

B．continued

C．planned

D．wanted
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问答题 简答题

简述轨道爬行的主要原因是什么。
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