单项选择题
A．long-lasting B．fought between one part of a country and another C．short but frequent D．carried out according to international laws
A．training B．habits C．situations D．custom
A．Because thousands of young Americans wanted to go to Germany to study. B．Because young Americans were not satisfied with their school system in the USA. C．Because American professors were not as good as those abroad. D．Because European universities were not connected with churches.