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问题 多项选择题

肝肾综合征患者血液动力学的特点是（）

A.肾脏血流量减少

B.动脉血压下降

C.肾脏血管阻力增加

D.体循环血管阻力升高

E.肾脏血流无变化

答案

参考答案：A, B, C

解析：肝肾综合征是由于肝病导致功能性肾衰竭。其发病机制是肾脏血液动力学改变。可由于循环血浆容量减少或有效循环血量减少、动脉血压下降（B）或肾血管阻力增加（C）或肾内分泌异常，并导致肾血浆流量（A）与肾小球滤过率下降。故正确答案是ABC。

单项选择题

负责GSP认证（）

A．国家食品药品监督管理部门

B．省级食品药品监督管理部门

C．省以上食品药品监督管理部门

D．设区的市食品药品监督管理部门

E．直辖市设的县食品药品监督管理部门
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单项选择题

The "standard of living" of any country means the average person’s share of the goods and services which the country produces. A country’s standard of living, (1) , depends first and (2) on its capacity to produce wealth." Wealth" in this sense is not money, for we do not live on money (3) on things that money can buy. "Goods" such as food and clothing, and "services" such as transport and " (4) ". A country’s capacity to produce wealth depends upon many factors, most of (5) have an effect on one another. Wealth depends (6) a great extent upon a country’s natural resources. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a (7) climate; other regions possess none of them.

Next to natural resources (8) the ability to turn them to use. China is perhaps as well (9) as the USA in natural resources, but suffered for many years from civil and (10) wars, and (11) this and other reasons was (12) to develop her resources. (13) and stable political conditions, and (14) from foreign invasion, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equally well (15) by nature but less well ordered.

A country’s standard of living does not only depend upon the wealth that is produced and consumed (16) its own borders, but also upon what is indirectly produced through international trade. (17) , Britain’s wealth in foodstuffs and other agricultural products would be much less if she had to depend only on (18) grown at home. Trade makes it possible for her surplus manufactured goods to be traded abroad for the agricultural products that would (19) be lacking. A country’s wealth is, therefore, much influenced by its manufacturing capacity, (20) that other countries can be found ready to accept its manufactures.

18（）

A.those

B.what

C.that

D.it
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