要约既可以撤回也可以撤销
参考答案:对
29. A man who witnessed the accident said that the car _____ at nearly 100 kilometers per hour at the time.
A.was going
B.is going
C.had gone
D.has been going
企业财务管理环境中最主要的影响环境是( )。
A.经济环境
B.法律环境
C.政治环境
D.金融环境