In a highly competitive world, an （)businessman-is not likely-to succeed.

What leads to a stable growth of population for most of human history？

A. Species competition.

B. Low fertility.

C. Tribal fights.

D. High mortality.

Our stocks include a wide range of first-class electrical typewriters at very competitive prices.They have the correcting and automatically storing system. From the catalogues enclosed, you will find that our prices are much lower than those in the market.(英译中)

If you can make photographs, what can you do to enhance your skills？

A．Enter photo competitions.

B．Take as many photos as possible.

C．Take a community college class.

D．Learn from other photographers.

The best title for this article is______.

A．Population Growth in America

B．Regional Competition in America

C．Regional Population Imbalance in America

D．Change of Population Growth Rate in America

Which of the following statements can you infer from the passage？

A．The riders are competitive and fond of taking risks.

B．People except the riders show little interest in cyclo-cross.

C．Before 1967, amateur and professional classes had never been separated in competition.

D．Helpers are often hired by the riders.

What does Krueger study tell us？

A. Getting into Ph. d. programs may be more competitive than getting into college.

B. Degrees of prestigious universities do not guarantee entry to graduate programs.

C. Graduates from prestigious universities do not care much about their GRE scores.

D. Connections built in prestigious universities may be sustained long after graduation.

A.high; highly

B.highly; high

C.highly; highly

D.high; high

A、highly favorable

B、highly unfavorable

C、either highly favorable or highly unfavorable

D、moderately favorable or moderately unfavorable