103、is M divisible by 12 ?
1)M/3 rem 1 说明M不能整除12
2)M/4 rem 3 也说明M不能整除12
【确定】E
不对吧!??????/我选D
105、DS: what's the occuring possibility of event A or event B or Both event A and event B? I choose E
a. The occuring possibility of event A is 0.6.
b. The occuring possibility of event B is 0.4
【讨论】A,B为独立事件,C;A,B有关联,E。