有限空间作业完成后,监护人应(),确保有限空间内无人员和设备遗留后,关闭出入口。 A

题型:单项选择题

问题:

有限空间作业完成后,监护人应(),确保有限空间内无人员和设备遗留后,关闭出入口。

A.向工作许可人汇报工作完成情况

B.检查安全工器具

C.清点人员及设备数量

考点:有限空间作业有限空间作业题库
题型:单项选择题

Do you remember when your grandma told you the story of Snow White? Ah, the happy days of childhood!

But did you know that Snow White comes from Germany? It's just one story from the 209 in Grimm's Fairy Tales (《格林童话》 ). The Grimm brothers started to collect fairy tales in 1806. Their first book came out (出版) in 1812. Why are German fairy tales so interesting? Maybe it's because they come from a great place famous for its stories - the Black Forest. The Black Forest is in southwest Germany. It's the largest forest in the country - and one of the most beautiful. It's famous for its trees and lovely views, There are valleys and waterfalls(瀑布) there. It's a good place to start a story.

Don't forget to bring something back if you visit. People there are good at making clocks, musical instruments and watches.

小题1:From the story, we know that _______ is the hometown of Snow White.

A.England

B.Japan

C.America

D.Germany小题2:How long had the Grimm brothers been collecting stories?

A.Four years

B.Five years

C.Six years

D.Seven years小题3:From the story, we cannot guess that the Black Forest is very_______.

A.large

B.beautiful

C.boring

D.famous小题4: The story mainly tells us_______.

A.who wrote the story of Snow White

B.some things about Black Forest

C.people should visit Germany

D.Snow White is a very famous fairy tale.

题型:单项选择题

右图为一测定叶片光合作用装置的示意图,其中叶室为透明玻璃材料制   成。请据图分析回答问题:    

(l)夏季上午将此装置放到阳光下,气体分析仪能测到含量逐渐减少的气体是        ,该气体含量逐渐减少的原因是             

(2)气体是如何进出植物叶片的?某同 学制作了叶片横切面的临时装片放显微镜下观察,结果发现         是植物体与外界进行气体交换的“窗口”。他用此装片进一步观察细胞分裂能成功吗?

题型:单项选择题

向下表中的甲物质中逐滴加入相应的乙溶液至过量.反应过程中产生的气体或沉淀的质量与加入质量关系,符合下图曲线描述的是

[ ]

A.A

B.B

C.C

D.D

题型:单项选择题

基本尺寸不同的零件,只要它们的公差值相同,就可以说明它们的精度要求相同。

题型:单项选择题

调查报告的引言部分应包括()。

A.研究背景

B.研究目的

C.研究方法

D.调查结果

E.结论和建议

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