企业内部物流属于微观物流，一般不伴随商流发生。( )
参考答案：对
在低位，K、D来回交叉次数很多，表明发出信号的可靠性减弱。（）
If I were on the spot that day, I should be able to prevent the disaster to happen.
A. I should be able to prevent the disaster from happening.B. I should have prevented the disaster to happen.C. I would have been able to prevent the disaster from happening.D. I would be able to prevent the disaster to be happened.
