《高层民用建筑设计防火规范》规定,下列高层建筑中当设两根消防竖管有困难时,可设一根竖

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问题:

《高层民用建筑设计防火规范》规定,下列高层建筑中当设两根消防竖管有困难时,可设一根竖管的是()

A.建筑高度为26米的教学搂

B.十八层及十八层以下每层不超过8户,且建筑面积不超过650平方米的塔式住宅

C.十八层及十八层以下的通廊式住宅

D.十八层及十八层以下的单元住宅

考点:一级消防工程师第二章建筑分类与耐火等级第二章建筑分类与耐火等级题库
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一用户为UPS系统加装了一个系统旁路开关K.用户要在不间断供电情况下对UPS系统进行维护.需闭合此开关时,下列哪种操作方法正确().

A.先将UPS转旁路,再闭合K,再将UPS与输入、输出隔离

B.先闭合K,再将UPS与输入、输出隔离

C.先将UPS与输入、输出隔离,再闭合K

D.先将UPS与输入、输出断开,再闭合K

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把下列各句重新排列,使之成为一段通顺的对话(~75)

A. Mm. I have no idea...OK, some flowers! Give her some flowers with best wishes. I think they're

    the best gifts for her!

B. The day after tomorrow is my mother' s birthday. What should I get her?

C. Yeah! Good idea! I will help her finish housework and then give her the beautiful flowers!

D. Does she like little animals? Why don't you get her a pet cat?

E. No way. It' s too expensive and I haven't enough money to buy it.

F. Great! I think your mother will happy to receive your gift.

G. No, she doesn't like them at all.

H. Yes, I'd love to.

I. What about a camera? I think it' s a nice gift for your mother.

J. Thank you! Will you go and buy the flowers with me?

___________________________________________

题型:多项选择题

填入下面横线处的句子,与上下文衔接最恰当的一项是( )

正值深秋,亭边的菊花                    

A.十分秀丽,光洁鲜亮。竞相开放,争艳斗奇,花蕊嫩黄,花瓣层层叠叠

B.竞相开放,争艳斗奇。花蕊嫩黄,花瓣层层叠叠,光洁鲜亮,十分秀丽。

C.光洁鲜亮,十分秀丽。花蕊嫩黄,花瓣层层叠叠,争艳斗奇,竞相开放

D.花瓣层层叠叠,竞相开放。花蕊嫩黄,光洁鲜亮,争艳斗奇,十分秀丽

题型:多项选择题

民事法律关系是指由民法确认和保护的( )关系。

A.人身
B.社会
C.经济
D.财产

题型:多项选择题

萃取效果不好,可能有哪些原因?

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