填空题

In the United States the building of landfills is the job of both federal and local governments.

【参考答案】

N

<上一题目录下一题>

热门试题

填空题

Hazardous wastes have to be treated before helping dumped into landfills.

填空题

Landfills are like compost piles in that they speed up decomposition of the buries trash.