多层建筑内的电缆井、管道井应在每层楼板处采用()楼板耐火极限的不燃烧体封堵。A、低于

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问题:

多层建筑内的电缆井、管道井应在每层楼板处采用()楼板耐火极限的不燃烧体封堵。

A、低于

B、不低于

C、等于

D、远高于

考点:公安消防岗位资格考试建筑工程防火设计建筑工程防火设计题库
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特异性高,效价随SLE病情缓解而下降

A.抗核抗体
B.抗Sm抗体
C.抗双链DNA抗体
D.抗磷脂抗体
E.类风湿因子

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下表是某商店四天中售出某种商品的统计情况:
日期1日2日3日4日
每天售出数量(千克)130110  
每天售出数量与四天平均数的差 -100-20
每天售出商品的单价(元/千克)44.555.5
(1)完成上表:
(2)哪天售出数量最多?
(3)哪天收入最多?哪天收入最少?最多比最少多多少元?
题型:单项选择题

银州贸易城果品批发市场运来7000千克水果,几个个体经营者买去250箱,还剩750千克.每箱水果有多少千克?(列方程解答)

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用所给词的适当形式填空。

1. A year _________(divide) into 12 star signs.

2. The first _________(clone) sheep was named Dolly.

3. Stop _________(argue) about it. Let's be friends again.

4. The _________(relax) music made us even _________(relax).

5. Amy has just had his bicycle _________(repair).

6. It's a good _________(choose) to _________(choose) him as our monitor.

7. It's much _________(sun) today than yesterday.

8. _________(eat) too much is _________(health) for our health.

9. Your advice will be of great _________(valuable) to us.

10. I _________(colour) the card orange _________(cheer) you up and it brought you joy.

题型:单项选择题

气孔减少了铸件的有效面积,造成局部(),降低了铸件的力学性能。

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