An explosion is a sudden increase in amount __________.
（A）rapid burning causes it
（B）to be caused by rapid burning
（C）causing its burning to be rapi
（D）caused by rapid burning
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更多大学英语选择题200道试题
- 1The survivors __________ to a floating tree in hopes of rescue.
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- 3Unless we get more money, we'll be ____________ finishing this project.
- 4As __________ as you work hard and perform well, opportunities will be made available to you as the company succeeds and grows.
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