一般认为原生湿陷性黄土的地质成因是( )。A.冲积 B.洪积 C.冰水沉积 D.风 发布时间:2018-07-12 05:15 │ 来源:www.tikuol.com 题型:单项选择题 问题: 一般认为原生湿陷性黄土的地质成因是( )。A.冲积B.洪积C.冰水沉积D.风积
题型:单项选择题 Mike _____ his homework three hours ago. [ ]A. finished B. has finished C. is finishing D. is going to finish 查看答案