C
英语中比较级的三种结构
1）A is n (=twice,three,four)times as +asj/adv原级+ as B
2）A is n times +adj/adv 比较极+ than B
3）A is n times the + n + of B
eg this river is twice as long as that one in my hometown
this river is three times as long as that one.
this river is three times longer than that one
this river is three times the length of that one
不对,还是C正确 这跟with提前没关系 表达倍数时必须先说倍数的