更多“中国出现第一次建筑高潮期是在20世纪（）”相关的问题
雇主进行经济性裁员必须履行( )等程序，才可以裁员。
A．提前20日向工会或全体职工说明情况
B．听取工会或职工的意见
C．裁减人员方案向劳动行政部门报告
D．裁减人员方案向社会救助部门报告
E．裁减人员方案被劳动行政部门批准
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采集河流和溪流的水样时，采样点不应选在XXXXXXX（）
A.汇流口
B.溢流堰或只产生局部影响的小排出口
C.主要排放口或吸水处
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业内将接近保质期（）的商品算作临期商品。
A.1/5
B.1/4
C.1/3
D.1/2
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铁路货车段修时，货车中梁、侧梁采用腹板斜接时接口的夹角不大于（）
A.30°
B.40°
C.45°
D.50°
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Molish反应的试剂组成是
A．苯酚硫酸
B．萘-硫酸
C．α-萘酚-浓硫酸
D．酚-硫酸
E．β-萘酚-硫酸
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双频激光干涉仪的最小分辨率为（）。
A.0.8μm
B.0.08μm
C.15μm
D.25μm
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运行中电动机轴承过热、原因不会是（）。
A.轴承磨损严重或损坏
B.电源电压不正常
C.润滑脂过多、过少或变质
D.转轴弯曲变形
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增值税的常用计算方法有（）。
A、增值额=（产出—投入）×税率
B、增值税=（销售收入—外购项目成本）×税率
C、增值税=（工资+利润）×税率
D、增值税=（总收入—总成本）×税率
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Passage Two The bull was a sacred creature in the religion and folklore of the ancient world. It is not surprising, therefore, that the financial markets of western Europe should be moved by those ancient legends about the creative power of the bull. The stock market speculators translated that power into money and made it part of the speech of financial investors. The bull’s back was strong enough to carry the gambler’s greed for money. There were some who bought stock because they expected it would rise in price and give them a good profit. This kind of speculator was soon called a "bull". On the other side of the coin was the "bear". Instead of buying a stock, then selling it, the bear did the opposite. He sold a stock first, then bought it back at what he hoped would be a lower price. There is hard evidence that "bull" was stock market slang in Europe in the middle 1700’s. Such evidence can be found in the works of several 18th century British dramatists. The famous Colley Cibber, for example, describes a man who boasts of the money he has been making on the Lon don Exchange. "Every shilling," he says, "out of stocks, bulls, bears and bubbles!" Samuel Foote calls one of his characters a "mere bull and bear booby: the patron of lame ducks, brokers and fraudulent (欺骗性的) foot bankrupts!" Still, it is generally believed that "bear" became part of stock market slang long before "bull" did so. The use of "bear" , we are told, comes from a very old and well-known fable. This is the story of a man who sold the skin of a bear even before he caught the animal, just as some speculators sold stocks that they had not yet bought. English financiers of the 17th century made fun of such traders and called them "break skin jobbers". As an English dictionary of the time explained: "To sell a bear is to sell what one has not." The financial history of the past 200 years, both in America and Europe, tells some wild stories about the bears and bulls and their efforts to influence the stock market. Some of their dishonest deals, trades and speculations have given writers and dramatists much material for their plays, novels and satires. Happily, in recent times, the bears and the bulls have been brought under control. Laws have been passed to keep dishonest traders from the exchanges. The bears and the bulls in their time have had their fun and their profits. They certainly were a wild breed in their more dramatic and destructive days, bringing ruin to the exchanges and economies of nations. They make colorful, exciting reading, but they are part of the past. Today, thank God, the bears and bulls have been tamed. They now act like house pets--as seen in the words of a modem American poet, "I play with the bulls and the bears."
A．200 yearsB．250 yearsC．375 yearsD．280 years
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国务院办公厅印发的《中国防治慢性病中长期规划（2017—2025年）》对我国健康工作提出的要求包括（）。
A.加强慢性病防治工作 B.降低疾病负担 C.提高居民健康期望寿命 D.全方位全周期保障人民的健康
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81.女，38岁，术后2个月出现腹胀、乏力，ALT200U／L，手术时输血800ml，化验：甲肝抗体(-)，HBsAg(-)，抗HBc(+)，抗HBs(+)，抗HCV(+)，可能的诊断是
A.甲型肝炎
B.乙型肝炎
C.术后引起中毒性肝炎
D.输血后肝炎
E.急性丙型肝炎，输血所致
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A . Exception
B . ArithmeticException
C . NumberFormatException
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登高梯子与地面放置的夹角不应大于（），且梯脚要防滑，上下端要靠牢。
A.30°
B.45°
C.60°
D.70°
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无损探伤焊缝质量检验包括气密性检查、X射线检验、y射线检验、超声波检验等。
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