市场营销环境是一个动态系统，每一环境因素都随着社会经济的发展而不断变化。（）
参考答案：对
哈佛大学的一项调查中显示那些有长远目标，有人生规划最后非常成功的人占总人数的（）。
A.20%
B.10%
C.8%
D.6%
Fifty-three thousand shouting enthusiasts filled the stadium; they had come to watch the first game of the season and to cheer the home team.
A．enthusiasts filled the stadium to comeB．enthusiasts, filling the stadium, had comeC．enthusiasts filled the stadium; and had comeD．enthusiasts filling the stadium, who had come
