2. 外语
  3. More than 20 (vary)______ of crops, such as rice, cotton and peanuts, are grown.

More than 20 (vary)______ of crops, such as rice, cotton and peanuts, are grown.

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问题 More than 20 (vary)______ of crops, such as rice, cotton and peanuts, are grown.
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答案varieties
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