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发布时间:2023-10-12 12:20:29

[单项选择]Exposure to asbestos fibers can cause cancer______.


A. only when asbestos is used in building industry
B. only when it is used in large quantifies
C. even if it is used in small quantities
D. if they are used when wet rather than dry

更多"Exposure to asbestos fibers can cau"的相关试题:

[单项选择]Exposure to asbestos fibers can cause cancer______.
A. only when asbestos is used in building industry
B. only when it is used in large quantifies
C. even if it is used in small quantities
D. if they are used when wet rather than dry
[单项选择]Exposure to asbestos fibers is harmful to people's health,______
A. so the use of asbestos is limited
B. but asbestos will continue to be used for a long time to come
C. so other new kinds of materials are under development
D. but they will not be so when ventilation devices are used
[单项选择]Asbestos is a mineral fiber that can cause cancer if {{U}}inhaled{{/U}}.
A. picked up
B. taken indoors
C. breathed in
D. eaten up
[单项选择]Too much______ to X-rays can cause skin burns, cancer or other damage to the body.
A. manifestation
B. revelation
C. attachment
D. exposure
[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]Some drugs taken in large quantities can cause permanent brain damage.()
A. temporary
B. lasting
C. dangerous
D. serious
[单项选择]Too much tourism can cause all these problems EXCEPT ______


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