Have you heard of Alexander Graham Bell?--- Yes,he invented __telephone in 1876.为什么用a
问题描述：
Have you heard of Alexander Graham Bell?--- Yes,he invented __telephone in 1876.为什么用a
答
用a而不是the,a表示“电话”的这个名词,不特定指某一部电话,是泛指.此句只是论述一个事实,并不是说话双方所谈论的对象