[单项选择]Not enough tourism can lead to ______
A. an increase of unemployment
B. a decrease in tourist attractions
C. the higher cost of support facilities
D. a rise in price and a fall in pay

[单项选择]Not enough tourism can lead to ______


A. an increase of unemployment
B. a decrease in tourist attractions
C. the higher cost of support facilities
D. a rise in price and a fall in pay

[单项选择]Water, ______ enough, can change into vapour quickly.
A. when heated
B. heating
C. though to be heated
D. when is heated

[单项选择]

Without proper planning, tourism can cause problems. For ex ample, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, the inhabitants become annoyed and unhappy. They begin to dislike tourists and to treat them impolitely. They forget how much tourism can help the country’s economy. (79)It is important to think about the people of a destination country and how tourism affects them Tourism should help a country keep the customs and beauty that attract tourists. Tourism should also advance the well— being of local inhabitants.
Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry. This means that other parts of the country’s economy can suffer.
On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money. It costs a great deal of money to build la
A. an increase of unemployment
B. a decrease in tourist attractions
C. the higher cost of support facilities
D. a rise in price and a fall in pay

[单项选择]Too much tourism can cause all these problems EXCEPT ______.

[单项选择]Tourism can help the following except ______.


A. broadening the mind of the travelers
B. putting on traditional shows
C. supporting the serious drama
D. leading to cultural misunderstanding

[多项选择]Which of the following can lead to the contribution of LAN traffic congestion?（）
A. Too many hosts in a broadcast domain
B. Full duplex operation
C. Broadcast storms
D. Multicasting
E. Segmentation
F. Low bandwidth

[单项选择]What can his pension enough to pay for
A. One big apartment.
B. A two-room apartment.
C. One cockroach-infested room.
D. His well-being life.

[单项选择]Studies alone can lead us to that pleasure which is best in quality and infinite in quantity.（）
A. 全身心地学习会使我们在精神上得到激情和无限快乐。
B. 学习本身就能把我们带到至高无上、无穷无尽的欢乐境地。
C. 单独学习能传达我们所喜欢的质量最好和数量无限的东西。
D. 学习能把我们带到高尚的、永无休止的娱乐之中。

[单项选择]Poor diets can lead to such diseases as rickets and scurvy.

[单项选择]According to the text, discrimination can lead to.
A. higher levels of poverty
B. low levels of self-esteem
C. tension between different races
D. increased gender sensitization

[单项选择]Lack of sleep can lead to ______.
A. a sudden change in lifestyle
B. good bodily condition
C. the habit of falling asleep in front of the television
D. a quick drop in both physical and mental condition