第1题: [单项选择]He may not have wanted to be president but he was unfailingly dutiful once _______ was put upon him. A. civilization B. responsibility C. commitment D. demonstration 参考答案:B 答案解析:他并没想成为总裁,但是他一旦被赋予总裁的职责他就会尽心尽职。本题考查名词辨义。civilization“文化”; responsibility“责任,职责”;commitment“承诺,付出”;dem