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当前位置:首页>>热门考试>>托福>>《1997年10月托福考试阅读理解全真试题》(8) |
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《1997年10月托福考试阅读理解全真试题》(8) |
| 来源:www.stu88.com 时间:2006-04-27 |
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45.According to the passage, which of the following is NOT true of elliptical galaxies?
(A) They are the largest galaxies.
(B) They mostly contain old stars.
(C) They contain a high amount of interstellar gas.
(D) They have a spherical shape.
46.Which of the following characteristics of radio galaxies is mentioned in the passage?
(A) They are a type of elliptical galaxy.
(B) They are usually too small to be seen with a telescope.
(C) They are closely related to irregular galaxies.
(D) They are not as bright as spiral galaxies.
47.What percentage of galaxies are irregular?
(A) 10%
(B) 25%
(C) 50%
(D) 75%
48.The word "they" in line 29 refers to
(A) intervals
(B) yardsticks
(C) distances
(D) galaxies
49.Why does the author mention the Virgo galaxy and the Andromeda galaxy in the third paragraph?
(A) To describe the effect that distance has no visibility.
(B) To compare the ages of two relatively young galaxies.
(C) To emphasize the vast distances of the galaxies from Earth.
(D) To explain why certain galaxies cannot be seen by a telescope.
50.The word "dominated" in line 37 is closest in meaning to
(A) threatened
(B) replaced
(C) were developing in
(D) were prevalent in 共8页:  [1] [2] [3] [4] [5] [6] [7] 8
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