更多"What has sometimes caused plants to"的相关试题:
[单项选择]What has sometimes caused plants to die out of the past
A. Interference from foresters.
B. Variations in climate.
C. The absence of wooded land.
D. The introduction of new type of plants.
[单项选择]With out my glasses I can hardly tell what has been written in the letter．
A. 如果不戴眼镜，我几乎不能说出信上写的是什么内容。
B. 如果不戴眼镜，我也差不多能看清信上写的什么内容。
C. 如果不戴眼镜，我很难辨认出信上写的是什么内容。
D. 如果戴着眼镜，我就能辨认出信上写的什么内容了。
[单项选择]What has become of Pearman now
[单项选择]What has affluence brought to American society
A. Renewed economic security.
B. A sense of self-fulfillment.
C. New conflicts and complaints.
D. Misery and anti-social behavior.
[单项选择]What has happened to hemp in recent years
A. People have struggled for its legalization.
B. Canadian people have succeeded in legalizing it for fiber.
C. People have tried to make it accepted that hemp is not addictive.
D. Both A and B.
[单项选择]What has happened to the Vrain School District
A. A huge financial problem has arisen.
B. Many schools there are mismanaged.
C. Lots of teachers in the district are planning to quit.
D. Many administrative personnel have been laid off.
[单项选择]What has prompted the new administration to review the Australia’s citizenship test
A. It’s out of date.
B. Higher immigration rates.
C. Many applicants failing it.
[单项选择]What has kept temperatures from rising at an even higher rate
A. The absorption of carbon dioxide by natural factors.
B. Human effort to reduce carbon dioxide emissions.
C. Drastically reduced emissions of greenhouse gases.
D. A 10% decrease in the average weight of polar bears.
[单项选择]What has brought so many problems to Tokyo today
A. A severe earthquake and the Second World War.
B. The foreign occupation(占领) after the war.
C. The population explosion(爆炸) between1945 and 1960.
D. The rapid development of the city after the war.
[单项选择]What has changed the Nuclear Family in North America
A. People have changed their ideas about marriage.
B. Women become more independent.
C. The economy is changing.
D. All of the above factors are acting together.
[单项选择]What has troubled many families in the United States
A. A not-large-enough income.
B. Nothing is left over to put away.
C. The increasing cost of living.
D. A shortage of certain goods.
[单项选择]What has caused the textile industry in New England to move down to the Southeast
A. The lower cost of labor in the Southeast.
B. The large potential market in the Southeast.
C. The proximity to raw materials in the Southeast.
D. The better transportation system in the Southeast.
[单项选择]When asked to explain what has happened, John was totally at a loss for words.
A. 近年来人们对于控制会议长度的方法提出了很多想法。
B. 最近几年来人们对于如何减少会议数量提出了很多意见。
C. 近年来人们对于控制会议长度的方法考虑了很多。
D. 如何在最近几年内减少会议数量是很多人都曾考虑过的问题。
[单项选择]According to the second paragraph, what has led to a lack of support for entrepreneurs
A. Entrepreneurs have always preferred to act independently.
B. The requirements of big businesses have always taken priority.
C. It is difficult to find solutions to the problems faced by entrepreneurs.
D. Entrepreneurs are reluctant to provide information about their businesses.
[单项选择]What has NOT been controlled at all as regards water pollution
A. Industrial polluters.
B. Sewage.
C. Rain runoff.
D. Toxic substances.
[单项选择]From what has been discussed above, we may safely draw the ______ that its disadvantages are far greater than its advantages.
A. solution
B. conclusion
C. answer
D. attention
