吸附剂的比表面积是（）。A．吸附剂的微孔面积 B．吸附剂所具有的J乙何面积 C．吸附

“商鞅虽死，秦法未败”。商鞅变法取得成功的根本原因在于

A．秦孝公的支持

B．商鞅的才能和决心

C．人民的大力拥护

D．顺应了时代发展的潮流

信仰是指对某人或某种主张、主义、宗教极度相信和尊敬，拿来作为自己行动的榜样或指南。

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.

13（）

A.change

B.exchange

C.communication

D.alter

气体保护焊工艺参数对保护效果的影响主要有：喷嘴至工件表面距离气体流量和（）、焊接速度和外界气流、接头形式等。

充满竞争的、复杂的项目管理环境加大了对项目工作完成时间的压力。进度的控制是避免时间延期的一个重要方法。时间管理的矫正行为经常是加速某些行为以确保这些行为能够及时完成，或者在尽可能短的延期内完成。为了重新编制和执行进度表，矫正行为通常要求（）

A、做大家都不喜欢的决策

B、及时调整基准线

C、核心原因分析

D、资源平衡