更多"Why do researchers expose newborns "的相关试题:
[单项选择]Why did one scientist expose birds to artificial daylight
A. To test the relationship between daylight and a disease of the glands common to birds.
B. To test the relationship between daylight and migration.
C. To test the relationship between migration and temperature.
D. To test the relationship between daylight and changes in the season.
[单项选择]You （ ） television. Why not do something more meaningful
A. always watch
B. are always watching
C. have always watched
D. have always been watching
[单项选择]Why do Americans love time
[单项选择]Why sometimes do people fail to tell the sex of an athlete
A. Female athletes are physically stronger.
B. Male athletes are running slower.
C. Some athletes are taking drugs and steroids.
D. Some people are near-sighted.
[单项选择]You（ ）television. Why not do something more meaningful
A. always watch
B. are always watching
C. have always watched
D. have always been watching
[单项选择]Why do visitors come to Venice
A. To realize their dreams.
B. To see the architecture and paintings only.
C. To enjoy the unique characteristics of the city.
D. To float on the water.
[单项选择]Why do the critics criticize advertisers
A. Because advertisers often brag.
B. Because critics think advertisement is a "waste of money".
C. Because customers are encouraged to buy more than necessary.
D. Because customers pay more.
[单项选择]You ______ television. Why not do something more active
A. always watch
B. are always watching
C. have always watched
D. have always been watching
[单项选择]Why do more people do their own jobs these days
A. They have much more leisure time and less money available.
B. There fewer tradesmen make a living from private homes.
C. There is paint, glue, oil and wire for all purposes.
D. There are tiles, shelves, carpets and pipes of all shapes and sizes.
[单项选择]Why do companies take downsizing
A. Because this is an inevitable tide throughout the world.
B. Because incompetent employees must give their way to new competent ones.
C. Because it is a direct way to reduce cost.
D. Because those employees are too old to work efficiently.
[单项选择]Why do people like dogs
A. Because dogs are lovely.
B. Because dogs are clever.
C. Because dogs always try to please their owners.
[单项选择]Why do tornadoes appear to be dark
A. They occur only at night.
B. They are funnel-shaped.
C. They pick up debris from the ground.
D. They are water-laden.
[单项选择]Why do some people dislike fairy stories
[单项选择]Why do many visitors come to Cambridge
A. To see Cambridge University.
B. To study in the colleges in Cambridge.
C. To use the libraries of the university.
D. To visit the professors there.
[单项选择]Why do only few pilots retire early
A. Because pilots are much needed in the airline industry.
B. Because the economy is gloomy.
C. Because the cost of training a pilot is high.
D. Because pilots can not do other jobs.
[单项选择]Why do most visitors come to Cambridge
A. To see Cambridge University.
B. To study in the colleges in Cambridge.
C. To use the libraries of the university.
