煤矿企业必须加强职业病危害的防治与管理,做好作业场所的职业卫生和劳动保护工作,采取有效措施控制尘、毒危害,保证作业场所符合国家职业卫生标准。
参考答案:对
You might as well expect a river to flow backward ____ us carrying out the plan.
A.than stop
B.as to stop
C.as stop
D.so as to stop