請教本句中as many as的用法

題目：

請教本句中as many as的用法
Companies are providing jobs for nearly eight million people,about as many as are enrolled in the nations colleges.
請分析一下這句裡面as many as是什麼用法,兩個as分別是什麼詞性,

解答：

as many as是和……一樣多的意思
全句翻譯：公司們爲將近8百萬人口提供了工作,幾乎和州立大學裡錄取的學生一樣多
as是連詞