Compare a typical Distributed Replicated Block Device （DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct？（）

Why does the author mention crayons and freshly mown grass in paragraph 5？

A．To give examples of smells that can trigger memories and emotions

B．To compare typical responses to two common smells

C．To explain why smells are likely to affect a person's behavior

D．To identify smells that can increase alertness and work efficiency

较少的国家。假设教育只影响劳动效率的水平。再假设这两个国家在其他方面是相同的：它们有相同的储蓄率、相同的折旧率、相同的人口增长率和相同的技术进步率。这两个国家都可以用索洛模型来描述，并且都处于其稳定状态。你预期以下变量会是多少？

a．总收入增长率。

b．人均收入水平。

c．资本的实际租赁价格。

d．实际工资。

The amount of education the typical person receives varies substantially among countries. Suppose you were to compare a country with a highly educated labor force and a country with a less educated labor force. Assume that education affects only the level of the efficiency of labor. Also assume that the countries are otherwise the same: they have the same saving rate, the same depreciation rate, the same population growth rate, and the same rate of technological progress. Both countries are described by the Solow model and are in their steady states. What would you predict for the following variables？

a．The rate of growth of total income.

b．The level of income per worker.

c．The real rental price of capital.

d．The real wage.

l indicator. Inflation is a period of increased 【C1】______ that causes rapid rises in prices. 【C2】______ . your money buys fewer goods so that you get 【C3】______ for the same amount of money as before, inflation is the problem. There is a general rise 【C4】______ the price of goods and services. Your money buys less. Sometimes people describe inflation as a 【C5】______ when "a dollar is not worth a dollar anymore." Inflation is a problem for all consumers.

People who live on a fixed income are hurt the 【C6】______ . Retired people, for instance, can not 【C7】______ on an increase in income as prices rise. Elderly people who do not work face serious problems in stretching their incomes to 【C8】______ their needs in time of inflation. Retirement income 【C9】______ any fixed income usually does not rise as fast as prices. Many retired people must cut their spending to 【C10】______ rising prices. In many cases they must stop 【C11】______ some necessary items, such as food and clothing. Even 【C12】______ working people whose incomes are going up, inflation can be a problem. The 【C13】______ of living goes up, too. People who work must have even more money to keep up their standard of living. Just buying the things they need costs more. When incomes do not keep 【C14】______ with rising prices, the standard of living goes down. People may be earning the same amount of money, but they are not living 【C15】______ because they are not able to buy as many goods and services. Government units gather information about prices in our economy and publish it as price indexes 【C16】______ the rate of change can be determined. A price index measures changes in prices using the price for a 【C17】______ year as the base. The base price is set 【C18】______ 100, and the other prices are reported as a 【C19】______ of the base price. A price index makes 【C20】______ possible to compare current prices of typical consumer goods, for example, with prices of the same goods in previous years.

【C1】

A．spending

B．demanding

C．consuming

D．saving

Passage Three

Questions 31 to 35 are based on the following passage.

In the late 1960's many people in North America turned their attention to environmental problems，and new steel-and-glass skyscrapers(摩天楼)were widely criticized. Scientists pointed out that blocks of tall buildings in a city often overburdens. public transportation and parking lot capacities.

Skyscrapers are also big consumers，and wasters，of electric power. In one recent year. the addition of 17 million square feet of skyscraper office space in New York City raised the peak daily demand for electricity by 120，000 kilowatts-enough to supply the entire city of Albany，New York，for a day.

Glass-walled skyscrapers can be especially wasteful. The heat loss(or gain)through a wall of half-inch plate glass is more than ten times that through a typical brick wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment，builders of skyscrapers have begun to use double-glazed(装上玻璃的)panels of glass，and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However. mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.

Skyscrapers put a severe strain on a city's sanitation(卫生)facilities，too. If fully occupied, the two World Trade Center towers in New York City would alone generate 2.25 million gallons of raw wastes each year-as much as a city the size of Stamford，Connecticut，which has a population of more than 109，000.

Skyscrapers also interfere with television reception，block bird flyways，and obstruct air traffic. In Boston in the late 1960's，some people even feared that shadows from skyscrapers would kill the grass on Boston Common.

Still，people continue to build skyscrapers for all the reasons that they have always built them-personal ambition(抱负)pride，and the desire of owners to have the largest possible amount of rentable space.

The main purpose of the passage is to______.

A. compare skyscrapers with other modem structures

B. describe skyscrapers and their effect on the environment

C. advocate the use of masonry(化妆舞会)in the construction of skyscrapers

D. illustrate some architectural designs of skyscrapers

A.user@host＞file show filename1 compare filename2

B.user@host＞file compare files filename1 filename2

C.user@host＞compare files filename1 filename2

D.user@host＞compare filename1 filename2

Both television and home video are(compare) ______ recent inventions．

We often compare children()flowers.

A. with

B. to

C. In

n the first quarter rose by 15%.

A. Comparing

B. To compare

C. Compared

D. Compare