[简答题]

Ratio, Proportion, and Percent
These questions will test your knowledge of operations involving ratio, proportion, and percent.
Answer the following questions.

______ is 30% of 20.

[简答题]

As an analyst for the Department of Natural Resources, you analyze samples of river water. A 2-liter sample of water contained about 24 of a particular organism and a 4-liter sample of water contained about 48 such organisms. At this rate, how many of the organisms would you expect to find in a 10-liter sample of water from the same river

[单项选择]Questions 27～30A. Their lecturer-student ratio is not reasonable.
B. Their staff is not interested in helping students.
C. Their lecture halls are not well equipped.
D. Their degrees are not accepted by employers.

[简答题]构成比（proportion）

[填空题]Questions 23-24
Answer the following questions with NO MORE THAN THREE WORDS.

Which plants, Olafsson thinks, are more suitable to live on Surtsey, compared with other islands

[填空题]Questions 29 and 30
Answer the questions below.
Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer.

How long should student return called books

[填空题]Questions 21-25
Answer the questions below.
Write NO MORE THAN TWO WORDS for each answer.According to the liaison officer, what do volunteers help provide

[填空题]Questions 39 and 40
Answer the questions below.
Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer.

What level should the battle of controlling superbugs be carried out

[单项选择]An increasing proportion of our population, unable to live without advanced medical ______, will become progressively more reliant on expensive technology.
A. interference
B. interruption
C. intervention
D. interaction

[单项选择]
The proportion of works cut for the cinema in Britain dropped from 40 per cent when I joined the BBFC in 1975 to less than 4 per cent when I left. But I don’t think that 20 years from now it will be possible to regulate any medium as closely as I regulated film.
The Internet is, of course, the greatest problem for this century. The world will have to find a means, through some sort of international treaty of United Nations initiative, to control the material that’s now going totally unregulated into people’s homes. That said, it will only take one little country like Paraguay to refuse to sign a treaty for transmission to be unstoppable. Parental control is never going to be sufficient.
I’m still very worried about the impact of violent video games, even though researchers say their impact is moderated by the fact that players don’t so much experience the game as enjoy the technical manoeuvres (策略)that
A. Violent films.
B. Comedy.
C. European films.
D. Films acted by Leonardo.