公共投资的方式包括（）。
A.政府管制
B.直接投资
C.间接投资
D.BOT投资方式
E.长期投资
参考答案：A, B, C, D
Bad luck! We ______ Mount Emei when it rained heavily. [ ]
A. climbed
B. were climbing
C. are climbing
D. have climbed
无扩散型相变
