什么是地震观测环境?

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问题:

什么是地震观测环境?

考点:防震减灾知识竞赛地震监测预报地震监测预报题库
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给下列加粗字注音。  

①扁(    )  公(    )  理(    )    走(    )  

②骨(    )  汤(    )  立有(    )  不(    )

题型:问答题

周围血出现较多有核红细胞时,白细胞计数值必须按下列公式校正(X:校正前白细胞数;Y:白细胞分类计数时,计数100个白细胞的同时见到的有核红细胞数)校正后白细胞数/L= ()

A.X/(100+Y)

B.X×100/Y

C.100/X×(100+Y)

D.X×100/(100+Y)

E.100/(X+Y)

题型:问答题

小儿药物剂量计算,年长儿按体重计算,如剂量已超过成人量,则应以成人量______用药。

题型:问答题

Dear Mom and Dad,

I'm afraid I have some very bad news for you. I have been very naughty and the school master is very angry with me. She is going to write to you. You must come and take me away from here. She does not want me in the school any longer. The trouble started last night when I was smoking a cigarette in bed. As I was smoking, I heard footsteps coming towards the room .I did not want a teacher to catch me smoking, so I threw the cigarette away. Unfortunately, the cigarette fell into the waste-paper basket. It caught fire.

There was a curtain near the waste-paper basket. It caught fire too. Soon the whole room was burning. The master phoned the fire brigade. The school is a long way from the town and before the fire brigade arrived, the whole school was on fire. The master said that the fire was all my fault and I must pay for the damage. She will send you a bill for about a million dollars.

I'm very sorry for this.

Much love   

Sarah     

小题1:Why did Sarah write to his parents?

A.He missed them very much for they hadn’t seen each other for a long time.

B.He told his parents what he had done in school.

C.He was tired of studying, and wanted to leave school.

D.He thought he was old enough to help them do something.小题2: Where did Sarah smoke?

A.In the classroom

B.In the Dinning hall

C.In the street

D.In the dormitory小题3: Why was the school master angry with him?

A.Because he was too naughty

B.Because he was too lazy

C.Because he caused a big fire

D.Because he stole something from the school小题4:According to the passage, what should the students not do?

A.They should not smoke, because smoking is dangerous to them

B.They should not dance, because dancing would waste a lot of money

C.They should not make friends, because making friends would take them absent

D.They should not wear expensive clothes because they would waste a lot of money

题型:问答题

机械密封的漏通道主要有五个通道,简称“四点一面”,即:四点()、()、()、一面()、

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