一般来说，企业选择目标市场策略应考虑( )因素。
A．企业资源
B．入口数量
C．生命周期
D．竞争状况
E．市场特点
参考答案：A,C,D,E
If a person has not had enough sleep,his actions will give him ___ during the day.[ ]
A.out
B.up
C.in
D.away
剪切和复制命令的差别，在于“剪切”会把数据从原处删去。( )
