生产作业条件危险性分析法是采用发生事故的可能性、人员暴露于危险环境的频率和事故后果的严重度的( )进行评价的。
A.和
B.差
C.平方和
D.乘积
参考答案:D
They are my books. Please don't ______. [ ]
A. take them away
B. take it away
C. take away them
D. take away it
We hope this unfortunate incident wil not afect the friendly relations()us.