题目

 1878年美国煤气公司的股票猛跌，煤气灯也随之被淘汰。导致这种现象出现的原因是(  ) A．电的发明和应用         B．内燃机的出现         C．蒸汽机的改良        D．汽车的应用 答案：AHe could speak ______ French ______ German, so I have to talk with him in English. [     ]A. neither … or B. neither … nor C. either … or D. either … nor