多孔粒状铵油炸药的主要成分有:多孔粒状硝酸铵和() A.汽油 B.柴油 C.重油

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问题:

多孔粒状铵油炸药的主要成分有:多孔粒状硝酸铵和()

A.汽油

B.柴油

C.重油

考点:凿岩爆破工考试凿岩爆破工(综合练习)凿岩爆破工(综合练习)题库
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判断下面各题是否正确,并写出你的判断方法.

①3180÷32=105

②7948÷78=86.

题型:单项选择题

以下关于牙槽嵴萎缩的原因,哪些不正确()。

A.全身因素

B.义齿不适

C.吃硬东西

D.多年不镶牙

E.由于牙周病引起的全口无牙

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下列不符合再障的是()

A.发热、贫血、出血倾向

B.骨髓增生低下

C.红系、粒系或巨核系有两系以上减少

D.无淋巴结肿大

E.肝脾肿大

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角膜映光Hirchberg法检查时发现反光点落在瞳孔的边缘,则该眼视轴偏斜()

A.15°或30

B.20°或40

C.10°或20

D.25°或40

E.5°或10

题型:单项选择题

At the time friends visit us in the evening, they often tell us they are in a hurry and look at their watches. It isn’t that our friends are all very busy; it is just that we haven’t got a television. People think that we are very strange. "But what do you do in the evening", they are always asking. The answer is very simple. Both my wife and I have hobbies. We certainly don’t spend our evenings looking at the walls. My wife enjoys cooking and painting and often attends evening classes in foreign languages. This is quite useful as we often go abroad for our holidays. I collect stamps and I’m always busy with my collection. Both of us enjoy listening to the music and playing chess together.

Sometimes there are power cuts and we have no electricity in the house. This does not worry us and we just light candles and carry on with what we were doing before. Our friends, however, are lost—no television! —So they don’t know what to do. On such evenings our house is very full for they all come to us. They all have a good time. Instead of sitting in silence in front of the television, everybody talks and plays games.

At night when there is no electricity, the couple ().

A.have to look at the walls

B.can do nothing but sit in silence

C.will have many visitors

D.have to go out for candles

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