there quarters 还是three quarter .why

there quarters 还是three quarter .why there quarter of 与there quarters of 区别 四分之三A) three quarters B)three-quarter C)three fourths 选A,为什么 Three quarters one and three quarters billion dollars中one and three quarter three quarters of a million or one and three quarter million three quarters of ...后面是+单数还是复数? 英语用法之分数连字符何时用?书中a third,two-thirds,three quarters；a quarter, three quarters同义词 three-quarters of an three-quarters of abillion是多少? for three quarters of an