sister asked me to go there by train,because the train ticket is ()the plane ticket

问题描述:

sister asked me to go there by train,because the train ticket is ()the plane ticket
A as cheap three times as.B as three times cheap as.C three times cheaper than.D cheaper three times than

C,希望帮到你能解释下为什么吗- -?几倍就是用这种表达法,你记住就行