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熟料的IM越高C3A越多,液相粘度越高。
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患者,男性,72岁。既往有慢性支气管炎及阻塞性肺气肿病史20余年,近半年来出现反复双下肢水肿。5天来咳嗽、咳痰加重,胸闷,低热,口唇发绀、神志不清。查体:双中下肺闻及干湿啰音,心率120次/分,律不齐,可闻及期前收缩。引起患者意识障碍最可能的原因是()
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排海污水含硫控制在()以下。
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下面选项中哪一个是移动预付费业务的主要特点?()
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一般来说,在中介控制型营销策略中,中介方向()收取一定的交易费用。
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下列哪几项属于购买健康保险应遵循的原则()。
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Quotas , tariffs and subsidies Like most wars,a trade war may bring about desired economic or political changes, but in the long run almost everyone suffers ,including those whom the trade war was meant to help. An efficient carmaker, for example, may ask for limits of foreign imports, hoping to keep its price high without improving the quality of its products. In the end , however , other countries may retaliate with trade restrictions of their own. Consumers and businesses in both countries are then forced to buy poorly made and expensive domestic products. Trade restrictions might protect a few jobs in inefficient industries,but the whole economy often suffers by becoming less competitive in the international markets. The most common tools for limiting imports of foreign goods and services are quotas, tariffs,and subsidies. When a country imposes a quota, it limits the quantity of certain foreign products that can be imported. A tariff is a tax placed on goods entering a country , raising the price of imported goods. A government can also use the taxpayers' money to provide a subsidy to local producers , making the price of local goods artificially lower than imported goods. Trade barriers, like walls between feuding neighbors, are usually imposed unilaterally by one country acting on its own to limit the amount of foreign products available to local producer from foreign competition and allow them time to improve their products or lower their prices as long as they are protected from foreign competition by trade barriers. Although trade restrictions are of dubious economic value, they have been shown to be effective in bringing about political or social change. The refusal of countries to trade and do business with South Africa, for example, was widely seen to be responsible for the decision to dismantle the system of apartheid. Trade blockades can be useful in forcing countries to change policies that violate human rights or international treaties, but as long as a sufficient number of countries join in the blockade to make it effective. Questions for reading :
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根据《建筑工程建筑面积计算规范》(GB/T50353),半地下室车库建筑面积的计算,正确的是()。
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某投资者在5月份以30元/吨权利金卖出一张9月到期,执行价格为1200元/吨的小麦看涨期权,同时又以10元/吨权利金卖出一张9月到期执行价格为1000元/吨的小麦看跌期权。当相应的小麦期货合约价格为1120元/吨时,该投资者收益为()元/吨(每张合约1吨标的物,其他费用不计)
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余热锅炉汽水共腾现象及处理有哪些?