This kind of dumplings is special in our restaurant.It is 6yuan___12.A in B for C on D at
问题描述:
This kind of dumplings is special in our restaurant.It is 6yuan___12.A in B for C on D at
答
B为什么呢for在这个里边表示等价交换,所以6块钱 可以换12个饺子