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题型:模拟题难度:来源:
Many people believe we are heading for environment disaster ____ we basically change the way we live.

A. if
B. but
C. unless
D. once

答案
核心考点
试题【Many people believe we are heading for environment disaster ____ we basically ch】;主要考察你对连词等知识点的理解。[详细]
举一反三
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A. as if
B. the moment
C. even if
D. so that
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Unlike watching TV, reading is a highly active process ____ it requires attention as well as memory and imagination.
A. until
B. but
C. unless
D. for
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B. after
C. since
D. when
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A. though
B. because
C. unless
D. lest
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The landslide almost flattened the small town of Zhouqu, leaving 1,248 dead and 496 missing. I wonder how long it will be ____ the people there get over the shock.
A. before
B. when
C. since
D. after
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