编制安全技术措施计划的步骤包括()。
A.风险分类
B.危险源识别
C.风险回避
D.风险评价
E.制订安全技术措施计划
参考答案:B, D, E
What was Tom’s feeling of the party
A.All of the tables are taken.
B.All of the tables near the window are taken.
C.AII of the tables there aren’t taken.
设奇函数f(x)在(0,+∞)上是增函数,且f(1)=0,则不等式x[f(x)﹣f(﹣x)]<0的解集为[ ]
A.{x|﹣1<x<0,或>1}
B.{x|x<﹣1,或0<x<1}
C.{x|x<﹣1,或x>1}
D.{x|﹣1<x<0,或0<x<1}