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当前学科：高级轧钢加热工
题目：
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三段式连续加热炉按炉温制度可分为预热期，加热期和（）。
A . A、供热期
B . B、加热期
C . C、均热期
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推荐知识点:
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. Anyone can receive dozens of answers if he/she placed an advertisement.（）
不能处理、驾驭或摆脱某种可怕或危险情景时的情绪体验是()
尊重和保障人权是确保社会公平正义的基本前提。
投资者心理偏差与投资者非理性行为的表现形式包括（ ）。
识别信号音频对载波的调制度的一般为（）。
诊断肺癌最可靠的依据是哪项（）
目前抽油机井换泵主要有纯换大、检换大、（）3种类型。
隆头濑鱼不在下面哪个大洋中生活（）。
下述哪一项不符合肠套叠的病理改变（）
试分析偏误的来源。