更多"Why scientists say no to GM cotton"的相关试题:
[单项选择]Why scientists say no to GM cotton
A. Because the cotton was genetically modified.
B. Because the cotton was found to damage the environment.
C. Because the cotton harms the bollworm.
D. Because Monsanto dismissed the research.
[单项选择]Why may GM foodstuffs be liked by people in the future
[单项选择]Scientists say that the humble potato may be the key to（）the world's fast-growing population.
A. feed
B. feeding
C. be fed
D. be feeding
[单项选择]What do scientists say about the collision of an asteroid with Earth
[单项选择]Why American scientists are developing these maps
A. To estimate the extreme weather.
B. To develop the satellite technology.
C. To improve agricultural output.
D. To learn how to change information to maps more efficiently.
[单项选择]Why are scientists concerned about the population of California sea otters according to the passage
A. It has been growing at too fast a rate.
B. Its growth rate has been steadily decreasing.
C. Its growth rate is not as fast as that of the Alaska sea otters.
D. It has been greatly reduced by oil spills and other forms of pollution.
[单项选择]Why did the famous scientists become successful [A] Because they remembered all the facts. [B] Because they knew how to study. [C] Because they didn't get everything from school.
[单项选择]Scientists say it may be a few years（）it is possible to test the new medicine on patient.
A. because
B. after
C. before
D. since
[单项选择]Scientists say that many factors ______ changes in the weather.
A. bring in
B. bring off
C. bring about
D. bring forward
[单项选择]Scientists say that many factors ______ great changes in the weather.
A. brought about
B. brought on
C. brought up
D. brought forward
