设备点巡检的内容有哪些?

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问题:

设备点巡检的内容有哪些?

考点:钳工技能考试设备点检维护基础知识设备点检维护基础知识题库
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下图是培育表达人乳铁蛋白的乳腺生物反应器的技术路线。图中tetR表示四环素抗性基因,ampR表示氨苄青霉素抗性基因,BamHⅠ、HindⅢ、SmaⅠ直线所示为三种限制酶的酶切位点。 据图回答:

过程①可采用的操作方法是()(填字母代号)。 A.农杆菌转化 B.大肠杆菌转化 C.显微注射 D.细胞融合

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体育课上,老师在筐里放了30个乒乓球,让小东去拿.不许一次拿完,也不许一个一个地拿,要每次拿的个数相同,拿到最后正好一个不剩.小东共有几种拿法?每种拿法各拿几次?

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某颅脑外伤病人,唤之可睁眼,问话能回答,但不正确,刺激肢体时可躲避,此时昏迷评分是()。

A.9分

B.10分

C.11分

D.12分

E.13分

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Once upon a time, there was an island inhabited by: Happiness, Sadness, Knowledge, and all the rest of it, including Love. One day it was announced to the feelings that the island would sink, so all constructed boats and left. Except for Love.

Love was the only one who stayed. Love wanted to hold out until the last possible moment.

When the island had almost sunk, Love decided to ask for help.

Richness was passing by Love in a grand boat. Love said, "Richness, can you take me with you?"

Richness answered, "No, I can't. There is a lot of gold and silver in my boat. There is no place here for you."

Love decided to ask Vanity(虚荣) who was also passing by in a beautiful vessel. "Vanity, please help me!"

"I can't help you, Love. You are all wet and might damage my boat," Vanity answered.

Sadness was close by so Love asked, "Sadness, let me go with you."

"Oh . . . Love, I am so sad that I need to be by myself!"

Happiness passed by Love, too, but she was so happy that she did not even hear when Love called her.

Suddenly, there was a voice, "Come, Love, I will take you." It was an elder. So blessed and overjoyed, Love even forgot to ask the elder where they were going. When they arrived at dry land, the elder went her own way.

小题1:What idea did the writer intend to tell us in this passage?

A.Love takes a long period.

B.Love gets along without richness.

C.Love goes on against Vanity.

D.Love is different from happiness.小题2:Why did all except the elder refuse to take Love with them?

A.Because they have enough Love already.

B.Because they don’t need Love.

C.Because they look down upon Love.

D.Because in the writer’s opinion, Love has nothing to do with them.小题3:It can be inferred from the passage that the elder probably refers to ________.

A.Cleverness

B.Time

C.Knowledge

D.Beauty

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采用气体作为灭弧介质时,对气体的要求是()。

A.气体介质绝缘强度大、且热容量大的较好

B.气体介质绝缘强度大、且热容量小的较好

C.气体介质绝缘强度小、且热容量大的较好

D.气体介质绝缘强度小、且热容量小的较好

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