电工常用仪表名称中,()是按其工作原理分的。A、电磁式 B、电压表 C、交流表 D、

题型:单项选择题

问题:

电工常用仪表名称中,()是按其工作原理分的。

A、电磁式

B、电压表

C、交流表

D、携带式

考点:采油工考试采油高级工考试采油高级工考试题库
题型:单项选择题

阅读理解

                                                          Notice to the Audience

1. All members of the audience should be dressed neatly and slippers cannot be allowed into

the concert hall.  

2. Food and drink cannot be taken into the concert hall.  

3. Children under l. 2 m in height cannot be taken into the concert hall.  

4. All beepers and mobile phones can't be kept on during the concert.  

5. No photos can be taken during the concert.  

6. Smoking can't be allowed in the concert hall.

根据下面的句子判断正 (T)误 ( F)

( )1. Everyone should read the notice to the Audience before he goes into the concert hall.

( )2. If you want to go to the concert hall, you must wear your clean and tidy clothes.

( )3. You can go into the concert hall wearing slippers.

( )4. You can't take your son who is as tall as l. 0 m into the concert hall.

( )5. You can talk to your friend on you mobile phone during the concert.

( )6. Nobody can take photos during the concert.

( )7. You should keep your beeper off during the concert.

( )8. You can smoke in the concert hall.

( )9. You can take some water into the concert hall.

( )10. You can't take anything to eat into the concert hall.

题型:单项选择题

钩端螺旋体病患者出现发热的原因是

A.再燃

B.复发

C.先后两批病原体侵入

D.赫氏反应

E.变态反应

题型:单项选择题

请参照下面材料中划线的部分,另选我国两位古代诗人的名句,仿写句子。要求结构一致。(6分)

春天来了,春姑娘迈着轻盈的步子穿过了大江南北,世界各地都留下了她的足迹。 韩愈笔下的“天街小雨润如酥,草色遥看近却无”,道出了生机盎然的春              

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题型:单项选择题

(6分)写出下列热化学方程式:

(1)SiH4是一种无色的气体,遇到空气能发生爆炸性自燃,生成SiO2和液态H2O,已知室温下2g SiH4自燃放出热量89.2kJ,其热化学方程式为:                        

(2)在25℃、101kPa下,在稀溶液中,强酸强碱反应生成1mol 液态水放热57.3kJ。写出稀硫酸与烧碱溶液反应的热化学方程式______________       _________   __;

(3)已知60g C(s)与高温水蒸气反应制取CO和H2时吸收657.5KJ热量,写出热化学方程式                                             

题型:单项选择题

不计空气阻力,以一定的初速度竖直上抛一物体,从抛出至回到抛出点的时间为t,现在物体上升的最大高度的一半处设置一块挡板,物体撞击挡板前后的速度大小相等、方向相反,撞击所需时间不计,则这种情况下物体上升和下降的总时间约为()

A.0.5t

B.0.4t

C.0.3t

D.0.2t

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