按照参加一次旅游活动的人数划分，旅游活动可分为( )
A．散客旅游
B．国内旅游
C．入境旅游
D．出境旅游
E．团队旅游
参考答案：A,E
I think she'll like pop music, __________?[ ]
A. don't I
B. do I
C. won't she
D will she
钢的表面强化工艺
