精确制导武器的发展趋势

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问题:

精确制导武器的发展趋势

考点:军事学军事理论军事理论题库
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地球表面的重力加速度为g,地球半径为R,引力常量为G,可以估算出地球的平均密度(     )

A.

B.

C.

D.

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根据所给词的适当形式填空。

1. Don't put your _____ (glass) on the bed. Put them on your desk.

2. The computer room is on the _____ (one) floor.

3. At the weekend, she _____ (run) with her dog in the park for half an hour.

4. My brother often _____ a kite with me in the park on Sundays. (fly)

5. You can't ______(play) football here.

6. She ______(not do) housework in the morning.

7. My mother enjoys ______ down the street in the morning. (walk)

8. Carl's father ______ (take) her to the library every week.

9. The girl can not cross the road. She must _____ (wait) for the green light.

10. In the middle of the school, there ______ (be) a playground and some flowers.

题型:问答题 简答题

釉质和牙骨质在牙颈部相连的方式是

A.约30%牙骨质少许覆盖在釉质上
B.约70%釉质和牙骨质端端相连
C.约10%釉质和牙骨质并不相连
D.全部为釉质和牙骨质端端相连
E.约30%釉质少许覆盖在牙骨质上

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若有定义“int k,*q;”,则下列各选项中,赋值表达式正确的是( )。

A.q=(&k+1)

B.q=&k

C.q=k

D.*q=&k

题型:问答题 简答题

下列哪项是反映HBV有无活动性复制和传染性的指标()

A.表面抗原(HBsAg)

B.表面抗体(抗-HBs)

C.e抗原(HBeAg)

D.e抗体(抗-HBE.

E.核心抗体(抗-HBC.

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