Coal mine accidents

来源:新闻中心
创建时间:2010年03月30日
状态:已结束
Can security be beefed up for China"s coal mines in near future?
  1. Yes.
    42.9%
  2. No.
    35.7%
  3. Hard to say.
    21.4%
Can security be beefed up for China"s coal mines in near future?
状态:已结束  当前时间:2024-03-29 22:21:50