钢结构图中用表示何种螺栓   A.粗制螺栓   B.精制螺栓   C.永久螺栓

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问题:

钢结构图中用表示何种螺栓  

A.粗制螺栓  
B.精制螺栓  
C.永久螺栓  
D.安装螺栓

考点:注册建筑师建筑结构与设备二级注册建筑师建筑结构与设备
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B Customs of Bulgaria: Marriage and Family保加利亚习俗:婚姻与家庭
The average age for women to marry is between 18 and 25.25 tend to (1) when somewhat older. A church wedding often (2) the legal civil ceremony, and a large reception, which often involves (3) music and dancing, is held in the evening. Wedding traditions include (4) money on the bride’s dress to represent future prosperity, the groom (5) the bride at her home, and the couple pulling on opposite (6) of a loaf of bread—whoever gets the largest piece will be (7) boss of the family. Honeymoons are a new tradition.
The principle (8) mutual support is valued in the Bulgarian family. The elderly are (9) cared for by their adult children. Unmarried adults live with their (10) and many newly married couples live with one set of parents (11) they are able to get housing of their own. Most families (12) urban areas live in apartments, which are in short
supply, while (13) in rural areas usually have their own houses. Many village houses (14) owned by families who live in urban areas, who use them_ (15) summer and weekend retreats, or for retired parents.
Most families in (16) areas do not have more than two children, while families in (17) areas tend to be larger. Grandparents play an important role in (18) care, particularly in urban areas, where most women work outside the (19) . Men of the younger generation have begun to help with household (20) , once considered only women’s responsibility.

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下列各项字形和画线字的注音全都正确的一项是(    )

A.春霄 踯躅 (zhí zhú) 约(zhuó)舟子(biān)回眸一笑

B.轩冕绸缪(chóu miù) 马(róng)捣衣(zhēn)豆蔻词工

C.危樯迤逦(yǐ lǐ)麦 (jì)玉秋(diàn)列缺霹雳

D.祠堂 潺湲(chán yuán)石(jié) 玉头(shāo)云栈萦纡

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读图,分析回答下列问题:

(1)图中字母代表的地理事物为:

A______(湖泊),B______(河流),C______(山脉),D______(山脉),E______(海湾),F______(国家),G______(国家),H______(湖泊).

(2)美国的地形呈______分布.

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简述增氧机械的种类及选购。

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《尚书·洪范》对五行的持性作了经典性阐释“土爱(),“金曰()”。

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