离心式压缩机的保护措施分为温度、压力、机械保护措施。

发布时间：2017-11-12 14:45 │ 来源：www.tikuol.com

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问题：

离心式压缩机的保护措施分为温度、压力、机械保护措施。

考点：延迟焦化操作工考试中级延迟焦化操作工考试中级延迟焦化操作工考试题库

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用方框中所给的词的适当形式填空，每词限用一次。

good you way during talk radio friend practice something newspapers

    I'd like to say  1 about how you can improve your English. To learn English  2 , you have to practice
all the time. Listening to the 3 , watching television, and attending movies are good  4 to improve your
listening skill. You can develop your speaking skill by 5 to native speakers of English whenever possible
and by speaking aloud to  6 when you are alone. Reading and writing also require a lot of 7 . You can
improve your reading skills by reading English language  8  and magazines. Writing to  9 in English and
keeping a diary are good ways to practice writing. Hope you have a good time  10 your stay here for the
course, thank you.

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如图集气瓶中用滤纸折成的纸蝴蝶上喷洒了一种溶液，通入某种气体后，实验结果与预测的纸蝴蝶颜色变化不一致的是(　　)

	A	B	C	D
喷洒液	酚酞	紫色石蕊	酸性重铬酸钾	酸化的KI—淀粉
通入的气体	NH₃	Cl₂	CH₃CH₂OH(g)	O₃
预测的颜色变化	变为红色	最终褪色	无明显变化	变为蓝色

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