小企业的退出障碍包括()。 A.心理障碍 B.组织障碍 C.制度障碍 D.物质 发布时间:2017-07-22 03:23 │ 来源:www.tikuol.com 题型:不定项选择 问题: 小企业的退出障碍包括()。A.心理障碍 B.组织障碍 C.制度障碍 D.物质障碍
题型:不定项选择 —Have you been to Australia?—Yes, only once. I ____ there only for seven days. [ ]A. have stayed B. was staying C. stayed D. had stayed 查看答案