[简答题]______ in universities around the nation has more than tripled compared to this time last year.
A. Enroll
B. Enrolls
C. Enrolling
D. Enrollment

[单项选择]（） in universities around the nation has more than tripled compared to this time last year.
A. Enroll
B. Enrolls
C. Enrolling
D. Enrolhnent

[单项选择]The discovery of planets around distant stars has become like space-shuttle launches — newsworthy but just barely. With some 50 extra solar planets under their belt, astronomers have to announce something really strange to get anyone’s attention.
Last week they did just that. Standing in front of colleagues and reporters at the American Astronomical Society’s semiannual meeting in San Diego, the world’s premier planet-hunting team — astronomer Geoffrey Marcy of the University of California, Berkeley, and his colleagues — presented not one but two remarkable finds. The first is a pair of planets, each about the mass of Jupiter, which whirl around their home star 15 light-years from Earth in perfect lockstep. One takes 30 days to complete an orbit, the other exactly twice as long. Nobody has ever seen such a configuration. But the second discovery is far stranger — a solar system 123 light-years away, in the constellation Serpens, that harbors one "ordinary" planet and another so hu
A. there is little for astronomers to discover now
B. the public have no interest in astronomical discoveries
C. astronomers have been making a lot of discoveries of planets
D. the discovery of planets is as important as the launch of space shuttles

[简答题]More and more universities are planning to develop international exchange programs encouraged by______.

[单项选择]

Each nation has its own peculiar character which distinguishes it from others. But the peoples of the world have more points in common than points in which they differ. One type of person that is common in every country is the one who always tries to do as little as possible and to get as much as possible in return. His opposite, the man who is in the habit of doing more than is strictly necessary and who is ready to accept what is offered in return, is rare everywhere.
Both these types are usually unconscious of their character. The man who avoids effort is always talking about his "rights": he appears to think that society owes him a pleasant, easy life. The man who is always doing more than his share talks of "duties": he feels that the individual is in debts to society, and not society to individual. As a result, neither of these men thinks that he behaves at all strangely.
Then man who tries to do as little as he can is always full of excu
A. in practice
B. in the end
C. in effect
D. in no time