a kind of 用法?a kind of apple 和 a kind of apples 哪个对 为什么?

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a kind of 用法?a kind of apple 和 a kind of apples 哪个对 为什么?

a kind of 用法?a kind of apple 和 a kind of apples 哪个对 为什么?
a kind of 用法?
a kind of apple 和 a kind of apples 哪个对 为什么?

a kind of 用法?a kind of apple 和 a kind of apples 哪个对 为什么?
a kind of apple正确.a kind of +名词的单数.
a kind of +名词的单数;kinds of +名词的复数.例如:a kind of bird;kinds of birds
做主语是以kind的单复数来定,例如:
All kinds of birds are in the zoo.
There is a kind of bird in the zoo.