题目

 It was ________ of my secretary not to have let others disturb me this morning when I was occupied with my work. A. generous                  B. polite                       C. considerate              D. sympathetic 答案：C1931年10月18日夜，美国人纷纷将明亮的电灯关闭，用这种方式来哀悼一位为人类带来光明的发明家的逝世。这位发明家是A．马可尼B．贝尔C．本茨D．爱迪生