土壤侵蚀强度
参考答案:是指地壳土壤在自然营力和人类活动综合作用下,单位面积和单位时段内被剥蚀并发生位移的土壤侵蚀量。
The customer bargained with the shopkeeper for a long time, and finally they agreed ___________ the price.
A.to
B.with
C.on
D.at
磨煤机消防蒸汽通入时间?