单项选择题
A．means B．meaning C．meant D．to mean
52（）A．register nameB．advertisementC．business philosophy...
单项选择题52（）
A．register name B．advertisement C．business philosophy D．organization form
53（）A．has come into beingB．had come into beingC．came in...
单项选择题53（）
A．has come into being B．had come into being C．came into being D．comes into being
50（）A．butB．whileC．andD．however
单项选择题50（）
A．but B．while C．and D．however
