关于amount和number比较级修饰请教

千与千寻117

1 the number of A is greater/smaller than the number of B. （AB可数）
2 the amount of A is more/less than the amount of B.  （AB不可数）
3 I have more/few apples than you have.
4 The number of my apple is greater/smaller than the number of yours.
对么？或者请将这个知识点更正

千与千寻117

自顶  没有同学顺便帮我看一下么