There are visitors in Hangzhou every year.
A. million of
B. millions of
C. million
D. milliones of
网友回答
A. million of
(答案→)B. millions of
C. million
D. milliones of
解析：当million与具体数字连用是，million不能加s，也不能与of连用；当million不与具体数字连用是应该用millions of表示”数百万的”。所以本题选B。