互联网创业的表现形式有（）。
A.电子商务
B.移动互联网创业
C.自媒体创业
D.劳务技术创业网
E.自营网站
参考答案：A, B, C, D, E
The final test ____, all the students went home happily. [ ]
A. has been finished
B. finishing
C. finished
D. was finished
影响人口空间动态的环境因素有哪些
