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当前学科：补益剂
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完带汤中具有补脾祛湿作用的药物是（）
A . A.白术
B . B.苍术
C . C.柴胡
D . D.白芍
E . E.人参
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为了操作的方便，可以将若干图形元素组合为一个整体，称为（）。
有效市场假说将证券市场的效率程度分为以下几个层次()。
投资大于10万的综合接入语音专线需要经过的环节是（）
能源技术的重大突破和能源结构的优化调整，从来就不是一蹴而就的，往往需要经历一个长期的、渐进的过程。以下哪方面因素决定了当前我国能源问题（）。
20世纪80年代初，深圳借鉴香港和外国经验，结合我国实际情况，走出了一条适合我国国情，适合社会主义市场经济的物业管理新路。2001年1月，中共十五届三中全会上，物业管理作为一个独立的产业被写进我国国民经济发展纲要，标志着物业管理经20年的发展，已经成为我国国民经济基础产业不可分割的一部分。我国物业管理体现出的基本特征是（）。
通过拨打11185特服号登记办理地税登记手续和护照速递、车辆证照速递以及医疗文书速递服务，这属于（）业务类别。
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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 :
下列不属于外交人员的是
阅读下面材料，回答问题。刘某是一名初中二年级的学生，他特喜欢罗纳尔多，于是把头发剃成足球式的形状。第二天来学校上课，刚走进教室，被老师看见，老师便对他说："你的发式太怪了，把头发再剪剪，恢复正常了再来上课，顺便让你爸爸妈妈来学校一趟。"刘某回家后，将这件事告知家人，第二天他和他的外婆一起来学校，学校老师要求刘某剪掉头发，否则不准许他上课。于是外婆带他去将头发剪成光头。第三天刘某来到学校，没想到学校老师却说哪有学生剃光头来上课的，依然不允许他上课。外婆只好找校方领导，校方也说不准许其上课。家长说："可否戴帽子上课。"校方说："不行，等头发长长了再来上课。"家长为让刘某学习，找到教育局领导反映情况，教育局要求学校准许刘某上课，但是刘某在校期间（要遵守学校纪律）要真正认识到自己的错误。学校收到教育局通知后，以刘某剃光头损坏学校形象为由依然不允许他上课。运用相关的教育法规及你所掌握的教育学原理回答：学校这样做是否合理？为什么？