The factory produces half a million coats every years 90％____ are sold abroad.

题目

The factory produces half a million coats every years 90％____ are sold abroad.
横线处为什么填 of which?

答案

which指代的是前面的half a million coats
90% of which 的意思就是90% of half a million coats（某物中的百分之多少）