这两个短语的意思是一样的，都是“和……一样多”。
区别在于“as many as”修饰可数名词。而“as much as”修饰不可数名词
其实很好记，这两个短语的区别也就是many和much的区别，many 修饰可数名词，而much修饰不可数名词。
【释义】
as many as
英 [æz ˈmeni æz]
美 [æz ˈmeni æz]
多达；和...一样多；多至
双语例句
1、She could download as many pictures as she liked.
她可以下载任意多的图片。
2、There are over four times as many farmers' markets in the US as there were 20 years ago.
美国农贸市场的数量是20年前的四倍多。
3、You can choose as many clubs as you like.
你可以选择任何你喜欢的俱乐部。
as much as
英 [æz mʌtʃ æz]
美 [æz mʌtʃ æz]
即使；虽然
【双语例句】
1、If they can't, they may have to pay as much as $1, 200 as a fine (罚款).
如果他们不能，他们可能不得不支付高达1200美元的罚款。
2、There is an amazing world out there, and it needs our children as much as they need it.
外面有一个神奇的世界，它需要我们的孩子，就像他们需要它一样。
3、Knowledge as much as possible and keep improving myself.
尽可能多地学习知识，不断提高自己。
【总结】
这个区别与many和much的用法区别类似。
as many as的主语是可数名词 其谓语动词用单数。
as much as的主语是不可是名词 其谓语动词用复数。
as much as常用在“雨量、水量、时间量、重量、钱数、价格”等方面,表示总量和单位量的'大小；as many as 常用在人或物的具体数量前,侧重于具体数目,意思是“和……一样多”,“多达……”。
这个问题我会，让我来告诉你as many as 和 as much as的区别，希望能帮助到你
读音与含义不同
as many as：英[æz ˈmeni æz] 美[æz ˈmeni æz] (用于数字之前表示数目极大)多达…;
as much as：英[æz mʌtʃ æz] 美[æz mʌtʃ æz] (置于数量前)多达;
用法不同
一、as many as 常用在人或物的具体数量前,侧重于具体数目,意思是“和……一样多”,“多达……”
as many as 修饰可数名词
例句1： As many as 100 people were killed in the air crash.
翻译：这次空难中多达一百人丧生。
例句2：She has as many as seven sisters.
翻译：她的姊妹有七人之多。
例句3：Take as many as you please.
翻译：你要多少就拿多少。
二、as much as常用在“雨量、水量、时间量、重量、钱数、价格”等方面,表示总量和单位量的大小；
as much as修饰不可数名词
例句1：He eats as much as two kilos of rice a day.
翻译：他每天吃多达两公斤的米饭。
例句2：I'll help as much as I can, but there is a limit to what I can do.
翻译：我会尽力帮忙，但我所能做的也是有限度的。
例句3：He doesn't earn as much as I do.
翻译：他挣的钱不如我多。
much---不可数 as much water as ..