一个乘数是5，另一个乘数是9，积是（ ）。

66. __________.
Demand theory is based on a simply generalization about customer behavior that has been observed for centuries, that almost people would regard as "common sense". Generally speaking, if a good or service becomes more expensive, consumers are less likely to buy it. So, the price of oil more than doubled in 1999, the demand for oil would fall. How much did the demand for oil fall would depend on the elasticity of the demand for oil. Economists describe the demand for oil response as relatively inelastic. So, the fall was not large.
67. __________.
A substantial rise in the price of oil would affect the demand for oil tankers and coal in 1999.
68. __________.
The use of coal is the same as oil. When file price of oil rises, fewer people will use oil and more people will use coal. In Economics, coal is a substitute good of oil, the price of oil rises, and the demand for oil falls, the demand for coal increases. As the demand for coal is related to the demand for oil, therefore, a constriction in the demand for oil will mean that the demand for coal will shift to a rise. The increase in demand is shown by demand rising from oil to coal. So, the demand for coal increased in 1999.
69. __________.
Because the price of oil rose in 1999, refiner had to face a squeeze on profit margins. This made the costs of refining petrol increase. The costs of production increase will lead decrease on the supply for petrol. As the supply for petrol is related to the supply for oil, therefore, an extension in the supply for oil will mean that the supply for petrol will shift to a fall. This decrease in supply is shown by supply falling from Q_s0 to Q_s1 So, the supply for petrol decreased in 1999.
70. __________.
Because the price of oil rose in 1999, the supply for oil would raise. Nylon is joint of oil. So, the supply for oil raises the supply for nylon increases. As the supply for nylon is related to the supply for oil, therefore, an extension in the supply for oil will mean that the supply for nylon will shift to a rise. So the supply for nylon increased in 1999.
A. The graph shows how the crude oil price has changed between 1994 and 1998. In general, the crude oil price rose up to the peak until 1997, at which point there was a sharp reduction in the crude oil price. Finally, we can summarize that the overall price, if crude oil dropped from over＄10 per barrel to almost ＄7 per barrel between 1994 and 1998. Market forces affected this.
B. In 1999 the price of oil more than doubled. Discuss the effects of a substantial rise in the price of oil on the supply and demand for oil and other related products. This affected not only the demand and supply for oil, but also other related products.
C. Because the price of oil rose in 1999, producing oil could get more profit. Therefore, some producers would switch from providing nuclear power to providing oil. This meant that more producers would produce oil. Oil becomes more attractive than nuclear power; this will lead decrease on the supply for nuclear power. As the supply for nuclear power is related to the supply for oil, therefore an extension in the supply for oil will mean that the supply will shift to a fall. So, the supply for nuclear power decreased in 1999.
D. Supply theory tells us that profit enable producers to use less suitable resources to increase their supply of product. In 1999, the price of oil more than doubled, this meant that the oil producers could get more profit, so the supply would rise. This type of movement is known as an extension which leads to supply rising. How much did the supply for oil raise would depend on the elasticity of the supply for oil. The rule is that the steeper the curve, the more elastic the supply and vice versa. So, the supply for oil is elastic.
E. A substantial rise in the price of oil would affect the supply for nuclear power, petrol and nylon.
F. We know that oil tankers are used to transport oil. If the price of oil rises, fewer people buy oil. Therefore, less oil tankers are used to transport oil. In Economics, oil tankers are complementary goods of oil, the price of oil rises, and the demand for oil falls, the demand for oil tankers decrease. As the demand for oil tankers is related to the demand for oil, therefore, a constriction in the demand for oil will mean that the demand for oil tankers will shift to a fall. So the demand for oil tankers decreased in 1999.

人民警察必须把公安机关的利益作为自己全部工作的出发点和归宿。( )

分泌增加（）.

A．量反应 

B．停药反应 

C．副作用 

D．变态反应 

E．质反应

总监理工程师不得将（）工作委托总监理工程师代表。

A、签发工程开工/复工报审表

B、签发工程暂停令

C、审查分包单位资质

D、审批监理实施细则

E、调换不称职的监理人员

中国的政治文明经过了漫长曲折的历程。阅读下列材料，回答问题。

材料一：

中国法的界定十分模糊，倒是皇帝圣旨、朝廷法令、祖宗遗训更具有威力。因为法自君出，皇帝钦定法律，皇权置于法律之上，法律对皇权约束作用微乎其微。法律遇到开明皇帝有些用，一遇到昏庸暴君，无法无天，所谓“人亡政息”。——史仲文《中国人走出死胡同》

材料二：

有学者认为，近代史上中国曾经有三次建立资产阶级民主政治的机遇，第一次是辛亥革命时期；第二次是国民大革命基本推翻北洋军阀统治时期；第三次是抗战胜利后，但都与机遇擦身而过。——笑蜀《历史的先声——半个世纪前的庄严承诺》

材料三：

该图是某博物馆陈列的新中国国徽设计的两种方案。方案①以玉璧为主体，图案中有国家名称、红色五星、金色齿轮、金色嘉禾等要素。方案②是改进后的方案，保留了红色五星、金色齿轮、金色嘉禾等要素，加入了 * * 的图案。

据材料二（三次机遇任选一次）并结合所学知识，简析近代中国失去建立资产阶级民主政治机遇的原因。