更多"According to the passage, scientist"的相关试题:
[单项选择]According to the passage, scientists have decided that sulfur aerosols from volcanic eruptions affect global temperatures to a greater extent than ash clouds because
A. the greenhouse gas effect produced by human activities tends to have a much greater environmental effect than that of volcanic explosions
B. clouds of sulfur-rich gases tend to achieve greater heights in the stratosphere than do ash clouds
C. a particular explosion producing high sulfur and little ash had a greater environmental effect than the converse
D. the burning of fossil fuels tends to exacerbate the effects of sulfurous aerosols, but not those of ash clouds
E. (E) global warming effects tend to minimize the impact of ash clouds, but not those of sulfurous aerosols
[单项选择]According to the passage, scientists have positively confirmed that the brains of narcoleptics differ from those of normal brains in which of the following ways
A. (A) Narcoleptic brains tend to remove degenerative tissue at a more prolific rate than that of nonnarcoleptics.
B. (B) Narcoleptics are less responsive to drugs which treat neural autoimmune dysfunction than are nonnarcoleptics.
C. (C) Nonnarcoleptics do not possess the same neurological immune antigens as narcoleptics.
D. (D) Neurons that control muscle tone are damaged in the brains of narcoleptics, but not in those of non-narcoleptics.
E. (E) Narcoleptics experience greater neural degeneration as a result of aging than do nonnarcoleptics.
[单项选择]According to the passage parents have become increasingly interested in ________.
[单项选择]According to the passage you have just heard, which of the following is the most important
A. The time factor.
B. Musical language.
C. Character.
D. Consciousness.
[单项选择]According to the passage yon have just read, it seemed that Edward Stewart was ______.
A. a trained surgeon
B. an expert botanist
C. a skilled electrician
D. an experienced craftsman
[单项选择]According to the passage you have just read, it seemed that Edward Stewart was ______.
A. a trained surgeon
B. an expert botanist
C. a skilled electrician
D. an experienced craftsman
[单项选择]According to the passage, scientists are skeptical toward their equations because scientists ______.
A. work to explain real, rather than theoretical or simplified situations
B. know that well-defined problems are often the most difficult to solve
C. are unable to express their data in terms of multiple variables
D. are unwilling to relax the axioms they have developed
[单项选择]According to tile passage, scientists used isotopes from the water of the ice core to determine which of following
A. ( The amount of air that had bubbled to the surface since the ice had formed
B. ( The temperature of the atmosphere when the ice was formed
C. ( The date at which water had become locked in the glacier
D. ( The rate at which water had been frozen in the glacier
[单项选择]
Passage Four
Scientists have always wanted to know more about the other worlds in space. Years ago they knew a lot about the moon. They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought and thought. At last they found the only way to know more was to send men to the moon.
The moon is about 384 000 kilometers away from the earth. A plane can not fly to the moon because the air reaches only 240 kilometers high above the earth. Then there is no air. But something can fly even when there is no air. That is’ a rocket (火箭).
Rockets can fly out into space. Rockets with men in them have already reached the moon. Some rockets without men in them have flown to other parts, much farther away from the earth than the moon in the universe. One day, rockets may be able to go to any place.
The moon is （ ） away from the earth.
A. about 384 000 kilometers
B. 240 000 kilometers
C. only 348 000 kilometers
D. about 384 000 meters
