明龙骨吊顶工程施工中饰面板上的灯具、烟感器、喷淋头等设备位置应合理、美观,与饰面板的

题型:单项选择题

问题:

明龙骨吊顶工程施工中饰面板上的灯具、烟感器、喷淋头等设备位置应合理、美观,与饰面板的交接应吻合,严密;感应器、喷淋头与灯具的间距不得小于()。

A.200mm

B.250mm

C.300mm

D.350mm

考点:材料员材料员综合练习材料员综合练习题库
题型:单项选择题

阅读理解。

     The snow lasted until last Friday. I opened the window this morning and saw the sun  but I felt much

colder.

     "You'd better go to work on foot , dear,"said my husband,"It is dangerous for you to drive."

     I thought him right and agreed. It would take me about forty minutes to go my hospital. There was

about an hour left, so I started, with a bag of sandwich for breakfast. In the streets there was thick snow

and ice and the traffic was less than before and people walked carefully. Suddenly I saw a car going fast.

The driver tried to pass the crossing before the lights turned red. Maybe he didn't see two boys in the

middle of the street. His car knocked down(撞倒)one boy and stopped just in front of the police box.

     People crowded around the boy at once. I rushed out of the gathering crowd (聚集的人群)and was

going to look him over. But a man pushed me aside and said,"Step back(向后退),please. I,ve had a

course in first aid(急救)."

     I had to stand and watch his ministrations(救助) for a few minutes. Then I said to him,"When you

need a doctor, sir, I,m already here."

1.It's ___   today.

A. snowy            

B. cloudy            

C. sunny    

D. windy

2. I left home    ___ this morning.

A. after breakfast    

B. before breakfast    

C. as usual    

D. too late

3. People walked carefully because   ___ .

A. it was very cold          

B. there was much traffic

C. they wore warm clothes    

D. there was much snow and ice in the streets

4. The driver knocked down the boy because ___   .

A. he had something important to do    

B. he was afraid to be late for work

C. there was no policeman there        

D. he drove too fast past the crossing

5. The man thought   ___ .

A. only he could give the boy first aid  

B. the hospital was far from there

C. he was ready to help the police    

D. he had a lot of knowledge of medicine

题型:单项选择题

下列各组化合物中,均能由单质直接化合而得到的是

A.NH3、CuS、SO2、FeS

B.SO3、Cu2S、NO、FeCl3

C.FeCl3、SO2、NO、Cu2S

D.FeCl2、FeS、SO2、NH3

题型:单项选择题

分析《北京宫殿告成诏》一文之写作特色。

题型:单项选择题

以下的等速测试指标,哪一项不是慢速测试的指标

A.峰力矩

B.屈伸肌力矩比

C.力矩加大能耗

D.耐力

E.峰力矩角度

题型:单项选择题

个人大额存单的认购起点金额以产品约定为准,但不得低于()万元(含)。

A、5

B、10

C、30

D、50

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