设在其他建筑物内的燃油、燃气锅炉房的锅炉间,其事故通风量为:()A.对采用燃油作燃料

题型:单项选择题

问题:

设在其他建筑物内的燃油、燃气锅炉房的锅炉间,其事故通风量为:()

A.对采用燃油作燃料的,事故换气次数每小时不应少干6次;对采用燃气作燃料的,事故换气次数每小时不应少于12次

B.对采用燃油作燃料的,事故换气次数每小时不应少干6次;对采用燃气作燃料的,事故换气次数每小时不应少于6次

C.对采用燃油作燃料的,事故换气次数每小时不应少干12次;对采用燃气作燃料的,事故换气次数每小时不应少于6次

D.对采用燃油作燃料的,事故换气次数每小时不应少干12次;对采用燃气作燃料的,,事故换气次数每小时不应少于12次

考点:一级消防工程师一级消防工程师综合练习一级消防工程师综合练习题库
题型:单项选择题

Information is received into our brain by attention, and its quality determines (决定) how well it will be processed, saved and used afterwards.

All information we receive is chosen by our attention. Factors (因素) affecting (影响) our attention are personal interest, experience, ability, feelings, knowledge, environment, timing, and so on. The same information may attract different forms and levels of attention from different people. Some people can get and save the information easily; some may have great difficulty; while others may just turn a blind eye to it. To the same information, one may even pay different levels of attention at different times. But if the facts work together, the quality of attention may be better. Therefore, it is not surprising to see that somebody with average intelligence (智力) can have excellent performances in some fields.

The good news is that a person's attention can be shaped, trained and made stronger by effective exercise. With this in mind, we should keep improving the quality of our attention.

小题1:"it" in Paragraph 1 means _______.

A.information

B.brain

C.attention

D.quality小题2:All information we receive depends on _______.

A.information itself

B.our attention

C.our intelligence

D.the environment小题3:Which is not the factor that affects our attention according to the passage?

A.Interest and experience.

B.Experience and knowledge.

C.Ability and feelings.

D.Food and drinks.小题4:About attention, which of the following statements is right?

A.People always have the same level of attention.

B.People pay the same attention to the same information.

C.A person may pay different levels of attention to the same information at different times.

D.All factors affecting attention never work together.小题5:According to the passage, _______ can help people to make their attention better.

A.speaking more

B.effective exercise

C.hard work

D.high intelligence

题型:单项选择题

以各种大型机器设备的安装工程为保险对象的保险被称为()。

A.建筑工程保险

B.安装工程保险

C.机器损坏保险

D.企业财产保险

题型:单项选择题
你喜欢足球吗下面是对某学校七年级学生的调查结果:
 男同学女同学
喜欢的7536
不喜欢的1524
则男同学中喜欢足球的人数占全体同学的百分比是______%.
题型:单项选择题

一个电流计的内阻是100Ω,满偏电流是1mA,若将它改装成量程为3V的电压表,则应______(填“串”或“并”)联一个阻值为_______Ω的电阻.若把它改装成量程为0.6A的电流表,则应______(填“串”或“并”)联一个阻值为______Ω的电阻.

题型:单项选择题

具有收敛止血、固精止带、制酸止痛、收湿敛疮功效的药物是()

A.瓦楞子

B.牡蛎

C.海螵蛸

D.赤石脂

E.禹余粮

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