the pretty girl has ---hair.A long brown B a long brown 为啥 选A 呢 不是has a

the pretty girl has ---hair.A long brown B a long brown 为啥 选A 呢 不是has a
the pretty girl has ---hair.A long brown B a long brown 为啥 选A 呢 不是has a

the pretty girl has ---hair.A long brown B a long brown 为啥 选A 呢 不是has a
hair一般不可数,不用不定冠词a,但也有特殊,像grey hairs（满头银发）,没错吧

头发是不可数名词，不能用惯词a

hair 是不可数名词 前面不能用 冠词

头发不可数，不能加a