In the museum ,we saw the model of a house designed by the pioneers and built ________ wood and brick .

问题描述:

In the museum ,we saw the model of a house designed by the pioneers and built ________ wood and brick .
A.up B.on C.ofD.by

是c那么为什么呢?build up 建立 built of ... 由…造的 build on ... 在…上建造 build by ... 通过…建造灰常感谢你滴帮助,感激你。啊啊啊啊啊啊