这道题的解题过程是？_______the safety of
_______thesafetyofgas,thegovernmenthascheckedthecity'sgassupplysystemthoroughly.[]A.T...
_______the safety of gas, the government has checked the city's gas supply system thoroughly. [ ]
A. To ensure B. Ensuring C. Having ensured. D. To have ensured 展开
A. To ensure B. Ensuring C. Having ensured. D. To have ensured 展开
展开全部
| A |
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
