油罐溢罐事故原因不可能是().
A.油品含水过高
B.未及时倒罐
C.对高凝点油品,加热温度过高使罐底积水突沸
D.液体计失灵或人工检尺失误,记错数据
参考答案:A
--- It is what parents say and do that really matters in children’s character training.
--- ___________.
A.Properly
B.Doubtfully
C.Simply
D.Absolutely
门座起重机可分为()组合臂架式门座起重机和单臂架式门座起重机两种。
A.三连杆
B.四连杆
C.五连杆
D.六连杆