新概念英语同步语法强化第一册第三单元的选择填空第十题:Nowadays,_____of communication are very pepular among common people.书后正确选择是B a new means 理由是means是可数名词,既然可数为何定冠词要用a?然后谓语动词又是复数形式的be动词are?很不解,请问哪位高人能指点一下,不胜感激!