按照制定的实施部门不同，环境标准可分为（）。

—（）—I’m not sure what I’ll do.I hope to watch TV and enjoy myself.

A、Where are you going？
B、What are your plans for summer vacation？
C、What are you doing？

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your plan and don't stop until it is finished.A、StickB、FollowC、Insist 点击查看答案