试题预览
1、As a defense against air-pollution damage, many plants and animals ________ a substance to absorb harmful chemicals. ( 章节：3 难度：3)
- A、avoid
- B、employ
- C、dismiss
- D、discard
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2、The second part of the book describes the strange ( ) of events that lead to the King’s fall from power. ( 章节：3 难度：1)
- A、order
- B、table
- C、sequence
- D、number
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3、The grammatical difference between British and American English is so small as hardly ( ). ( 章节：3 难度：1)
- A、noticed
- B、to be noticed
- C、being noticed
- D、to notice
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4、The skinny cow is now fattening out under the good care of the （ ）. ( 章节：3 难度：4)
- A、keeper of a warehouse
- B、broker who buys and sells stocks
- C、stockman
- D、farmer who raises livestock
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5、Event organizers have worked hard to ( ) that the games will not pollute the environment. ( 章节：3 难度：2)
- A、assure
- B、ensure
- C、insure
- D、reassure
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