2. 外语
  3. A、Keeping the lights on when we do not need them. B、Using water when necessary. C、Finding ways to reuse things instead of throwi

A、Keeping the lights on when we do not need them. B、Using water when necessary. C、Finding ways to reuse things instead of throwi

admin2012-04-28  49
问题
选项 A、Keeping the lights on when we do not need them.
B、Using water when necessary.
C、Finding ways to reuse things instead of throwing them away.
答案A
解析
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