我国实行科教兴国的奠基工程是[ ] A．普及高中教育 B．扫除文盲 C．普及九年

若|x|=3，|y|=4，则x+y的绝对值是______．

一帕金森病患者，服用"美多巴"1年余，近1周开始出现阵发性行动迟缓、肢体震颤加重，多于中午、晚上服药前出现

该患者出现上述症状是（）

A.开关现象

B.剂末现象

C.肌张力障碍

D.双相运动障碍

E.迟发性运动障碍

下图为窦店村综合发展生态工程示意图，请据图回答：

(1)在该生态系统中，起决定作用的是_________。

(2)青贮、氨化处理是将秸秆和果穗等切碎压实后，加氨水或氮素化肥处理，以制成牛羊的优质饲料。其过程微生物通过_________将处理材料中的有机物分解。

(3)从能量角度出发，建立该生态系统的主要目的是__________。

(4)沼气池中微生物有除臭作用，这种臭味物质是_______，经_______的硝化作用，形成_______等物质被植物吸收利用。随着池中氧气的消耗，池中微生物异化作用类型变化是___________。

(5)该生态工程建设能作为样板在全国推广，从生态学分析是因为其最大优点是___________。

实现本质安全化主要靠操作者的技术水平、经验及小心谨慎来保证。

Deflation is an economic theory relating changes in the price levels to changes in the quantity of money. In its developed (1) , it constitutes an analysis of the (2) underlying inflation and deflation. As (3) by the English philosopher John Locke in the 17th century, the Scottish (4) David Hume in the 18th century, and (5) , it was a weapon (6) the mercantilists, who were thought to equate wealth with money. If the (7) of money by a nation merely raised (8) , argued the quantity theorists, then a "favourable" balance of trade, (9) desired by mercantilists, would increase the supply of money but would not in-crease (10) . In the 19th century the quantity theory (11) to the ascendancy of free trade over protectionism. In the 19th and 20th centuries it played a part in the (12) of business cycles and in the theory of foreign (13) rates.

The (14) theory came under attack during the 1930s, (15) monetary expansion seemed ineffective in combating deflation. Economists argued that the levels of investment and government spending were more important than the money supply in determining economic activity.

The tide of opinion (16) again in the 1960s, when experience (17) post-World WarⅡ inflation and new empirical (18) of money and prices— (19) A Monetary History of the United States (1963) by Milton Friedman and Anna Schwartz—restored much of the quantity theory’ s lost prestige. One implication of this theory is that the size of the stock of money must be considered when shaping governmental policies (20) to control prices and maintain full employment.

8（）

A.amounts

B.prices

C.levels

D.ranges