您还没有登录,登录以后才可以查看答疑和进行提问。

试题详情

Flash floods are common in desert regions and were widespread before the evolution of trees and woodland soils; in contrast, flash floods are ______ in woodlands, where floodwaters, impeded by trees, form ponds.
答案:E,F

专业教师答疑

问个问题