机械设备使用中的“三定”是指定人()。
A、定费用
B、定时间
C、定机
D、定岗位责任
参考答案:C, D
--I didn't know this was a one-way street, officer.
------_________
A.That's all right.
B.I don't believe you.
C.How dare you say that?
D.Sorry, but that's no excuse.
“马拉松”比赛的全程是42.195千米,是______千米______米.一位选手用了2小时15分钟跑完全程,合______小时.