7.D

This question tests the correct treatment of money and the establishment of a correct view of money. The role of money must be viewed comprehensively. The material view denies the role of money.

8.C

This question tests the concept of foreign exchange. Foreign exchange is a means of payment expressed in foreign currency for international settlement.

9.B

"Factors that may allow Chinese consumers to enjoy lower car prices" actually refers to the factors in the options that can affect car prices and make car prices drop.

Item 1: Inflation will cause prices to rise, which does not meet the requirements of the question. Using the elimination method, only option B can be selected.

The 2 appreciation of the RMB will help increase the purchasing power of the RMB and increase the actual income of residents. In line with the meaning of the question.

Competition in the 3 automobile markets is fierce, and full market competition is conducive to providing consumers with high-quality and low-priced products. In line with the meaning of the question.

The reduction of four import tariffs will help expand imports and meet the automobile consumption needs of domestic residents.

10.C

This question examines the significance of socially necessary labor time. The value of commodities is determined by socially necessary labor time, not by individual labor time. Only by improving technology and

improving business management can enterprises shorten individual labor hours to less than socially necessary labor hours, thereby making more profits. Therefore, option C is selected.

11.B

The labor productivity of this department has increased by 30% this year, so the value of the commodity is now 260/(1+30%). If Seivivor A produces 2 pieces per hour, then the total value created in 1 hour is:

2 pieces * 260/(1+30%) yuan = 400 yuan.

12.D

Item A, the price is at point B, the price is rising, the product is in a seller's market, wrong.

Item B, if the price falls from point B to point C, the demand for substitutes for the commodity will decrease, which is wrong.

Item C, if the price rises from point C to point D, the demand for complementary goods of this commodity will decrease, which is wrong.

Item D, the price is at point C. If the price falls and profits decrease, producers may reduce production and reduce production scale.

13.D

Purchase restriction orders limit residents’ consumption demand. Generally speaking, demand decreases and prices fall. The practice of purchasing restrictions in the materials is actually the use of the law of value to regulate and control the real estate market.

14.B

From Q2 to Q1, it means that as prices rise, the supply of commercial housing increases. Only B fits the meaning of the question. Loosening purchase restrictions will increase demand for commercial housing.

As demand expands, generally speaking, prices rise, which will prompt companies to develop new properties and increase the supply of commercial housing.

15.C

Face consumption is mainly consumption caused by comparison psychology.

16.A

People with unstable jobs and incomes have a higher desire to save because their income expectations are not optimistic and they increase their savings to prepare for rainy days.