利用堰闸测流的测站,在观测()基本水尺水位的同时需观测闸门的开启高度、孔数及流态。A

题型:单项选择题

问题:

利用堰闸测流的测站,在观测()基本水尺水位的同时需观测闸门的开启高度、孔数及流态。

A、闸门

B、上、下游

C、上游

D、下游

考点:水文勘测工考试水文勘测初级工水文勘测初级工题库
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

找规律,填一填。

15、22、29、36、(  )、(  )、(  )、(  )、(  )。

题型:单项选择题

下列关于固定化细胞的叙述,正确的是[ ]

A.催化效率高,低耗能、低污染

B.对环境的条件非常敏感,容易失活

C.既能与反应物充分接触,又能与产物分离

D.成本低、操作简单,但反应效果可能很低

题型:单项选择题

检查蓝氏贾第鞭毛虫

A.厚薄血涂片法
B.骨髓穿刺法
C.碘液染色法
D.染色实验(Sabin-Feldman)法
E.十二指肠引流法

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患者为某烧碱车间电解工段修槽工,发育良好,神志清。咽部与口腔黏膜充血,有多处点状溃疡,牙龈红肿、出血。其疾患最可能是()。

A.锰中毒

B.铅中毒

C.砷中毒

D.汞中毒

E.苯中毒

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