【题目】A new iphone costs about _________of a second-hand one．
A. the price of three times
B. three times the price
C. as much as the three times price
D. three times more than the price
在线课程【答案】B
【解析】
试题分析：考查倍数的表达方法。倍数的表达方法基本有三种：倍数+形容词/副词比较级+than；倍数+as+形容词/副词原级+as；倍数+the+size/length/width/price+of。由此可知答案选B。