门座起重机可分为()组合臂架式门座起重机和单臂架式门座起重机两种。A.三连杆 B.四 发布时间:2020-01-16 16:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 门座起重机可分为()组合臂架式门座起重机和单臂架式门座起重机两种。A.三连杆B.四连杆C.五连杆D.六连杆
题型:单项选择题 The water and soil conservation project resulted in farmers ______ the crops on the farmland _____ trees and grass.A.to replace; withB.to replace; forC.replacing; withD.replacing; for 查看答案