Almost all companies involved in new production and development must ______.
A. borrow large sums of money from friends and people they know
B. rely on their own financial resources
C. depend on the population as a whole for finance
D. persuade the banks to provide them with long-term finance
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The last sentence of this passage indicates that ______.
A. businesses trying to get publicity is a part of the Olympic Games
B. the Olympic organizers are not interested in the Olympic non-sponsors' doing
C. businesses must try very hard to earn money from the Olympic Games as if they were themselves competing in the Games
D. those who fail to sponsor the Olympics this time will try very hard the next time
A．Just so so.B．Quite good.C．Fewer than other jobs.D．None of them know the salary.
A. Just so so.
B. Quite good.
C. Fewer than other jobs.
D. None of them know the salary.
The passage is mainly about ______.
A. what constitutes an air pollutant
B. the serious impact of air pollution
C. how much harm air pollutants can cause
D. the effects of compounds added to the atmosphere
It can be inferred from the first paragraph that ______.
A. water vapor is an air pollutant in localized areas
B. the definition of air pollution will continue to change
C. most air pollutants today can be seen or smelled
D. a substance becomes an air pollutant only in cities
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