PowerPoint演示文稿的母版有（）。 A.幻灯片母版 B.标题母版 C.讲义母

在氢氧化钡溶液中主要存在的微粒有（　　）

A．氢氧根离子

B．氢氧化钡分子

C．钡原子

D．钡离子或水分子

有下列物质：①S ②H₂S ③SO₂ ④SO₃，其中硫元素化合价由低到高的顺序排列正确的是（　　）

A．①②③④

B．②①③④

C．①④③②

D．①③④②

下列有关法的特征的表述，哪项为正确的组合
①公司章程对公司、股东、董事、监事、经理均有约束力，为人们提供了行为的标准，因而具有法的特征和效力。
②一位党的干部因受贿被判处刑罚，同时被开除党籍，这些都是法的实施方式的体现。
③法是司法机关的办案依据，因此，可作办案依据的典型判例、行政规章、国家政策都可列人法的范畴。
④法的适用范围具有普遍性，由于北京市地方性法规只能在北京市有效，因而不是严格意义上的法

A．①④

B．②③④

C．都不正确

D．④

在一个相对布局中怎样使一个控件居中（）

A.android：gravity="center"

B.android：layout_gravity="center"

C.android：layout_centerInParent="true"

D.android：scaleType="cente"

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.

14（）

A.number

B.quantity

C.quality

D.figure