信息系统可行性分析的过程不包括
A．确定可选方案
B．确定最优方案
C．撰写可行性分析报告
D．建立系统逻辑模型
参考答案：D
After the earthquake, the family decided to move out though there were no ____ signs of damage to their house.
A．precise
B．regular
C．apparent
D．adequate
奶油压炼和加盐的目的是什么？
