2. 外语
  3. The recycling of aluminum conserves ninety-five percent of the energy needed to make new metal.

The recycling of aluminum conserves ninety-five percent of the energy needed to make new metal.

admin2012-07-29  48
问题 The recycling of aluminum conserves ninety-five percent of the energy needed to make new metal.
选项 A、cleaning
B、reprocessing
C、reselling
D、crushing
答案B
解析 再循环，重复利用
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