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下列结构不属于骨盆的是（）。
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延时器主要用于（）喷水灭火系统，其主要作用是防止误报警。

Marriage Advertisements in India Every Sunday morning millions of Indians settle down with a cup of tea and special weekend issues of their newspapers, just as Americans do. But here, with the marriage season approaching, many of them quickly to a Sunday feature that is particularly Indian-the-columns of marriage advertisements in which young people look for husbands and wives. This is relatively modern change in the age-old custom of the arranged marriage. The thousands of advertisements published each week increasingly reflect social changes that coming to this traditional society. For example, although women are still described in terms of appearance, or skill in "the wifely arts", information about her earning power is entering more and more of the advertisements. This reflects the arrival in India of the working wife. Divorce, which used to be almost unheard of in India, is sometimes now mentioned in the advertisements as in the case of a woman whose advertisement in New Delhi newspaper explained that had been "the innocent party" when her marriage broke up. Because the custom of the dowry (marriage payment) is now illegal, some advertisements say "no dowry" or "simple marriage", which means the same thing. However, the fathers of many bridegrooms still require it. In a land where light skin is often regarded as socially preferable, many also require that a woman have a "wheat-color" complexion or that a man be "tall, fair and handsome". Advertisements are placed and eagerly read by a wide range of people in the upper classes, mostly in cities. Many of them receive dozens of answers."There's nothing embarrassing about it," explained a Calcutta businessman advertising a son-in-law. "It's just another way of broadening the contacts and increasing the possibility of doing the contacts and increasing the possibilities of doing the best one for one's daughter." Because of high unemployment and a generally poor standard of living here, one of the best attractions a marriage advertisement can offer is a permit to live abroad, especially in Canada or the United States. A person who has one can get what he wants. One recent Sunday in Madras, for example, a Punjabi engineer living in San Francisco advertised for a "beautiful slim bride with lovely features knowing music and dance". And a man whose advertisement said that he held an American immigration permit was able to say, only girls from rich, well-connected families need apply. The word "one" in "a person who has one can get what he wants" refers to good attraction.（）

在市场调查中，如何选择抽样方法？

对电能表配互感器安装时有何要求？

某十二层现浇钢筋混凝土框架结构，乙类建筑，质量和刚度沿高度分布比较均匀，房屋高度38.4m，抗震设防烈度7度，设计基本加速度为0.1g，设计地震分组为第一组，Ⅱ类场地。结构基本自振周期T1=1.1s，周期折减系数为0.65，采用C30级混凝土（ft=1.43N／mm2）。箍筋和纵向钢筋分别采用HPB235（Φ，fy=210N／mm2）和HRB335（，fy=300N／mm2）级钢筋。计算时取as=as′=35mm。某中间层边框架局部节点如下图所示。梁端由重力荷载产生的弯矩设计值MG=-78kN.m，水平地震作用产生的弯矩设计值ME=±190kN.m，风荷载产生的弯矩设计值Mw=±77kN.m。抗震设计时，满足承载力和构造最低要求的梁纵向配筋As（，mm2），应最接近于下列何项数值？（）提示：梁截面顶部和底部配筋相同，此时某中间层边柱的梁柱节点核心区截面，如下图所示。节点核心区地震组合剪力设计值Vj=1013kN，对应的上柱柱底组合轴向压力设计值N=1500kN。已知节点核心区受剪截面满足公式Vj≤1/γRE（0.3ηjβcfcbjhj）的要求，且上柱组合轴向压力设计值N小于柱截面积与混凝土轴心抗压强度设计值乘积的50％。当核心区箍筋间距为100mm时，试问，满足x向受剪承载力最低要求的节点核心区箍筋直径，应为下列何项数值？（）

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下列选项中关于缺口分析的局限性的表述正确的是( )。A．缺口分析忽略了同一时间段内不同头寸的到期时间或利率重新定价期限的差异B．大多数缺口分析未能反映利率变动对非利息收入和费用的影响C．只能反映利率变动的短期影响D．以上说法都正确

监理工程师不得在以下哪些单位兼职? Ⅰ．工程设计Ⅱ．工程施工Ⅲ．材料供应 Ⅳ．政府机构Ⅴ．科学研究Ⅵ1．设备厂家