100%确定是
我参考书籍补充下
后修饰可书名词的有a great /good many,large numbers of,scores of ,dozens of,masses of
后修饰不可数名词的有a good /great deal of ,a large/great amount of ,large /great amounts of
修饰可数不可数都可以的有a lot of ,lots of ,plenty of ,a large/great quantity of ,quantities of ,a supply of ,supplies of