一道英语选择题,要解析
问题描述：
一道英语选择题,要解析
This vegetable is becoming more and more expensive and it costs( )the usual price.
A.three times B.as three times as C.more three times than D.twice higher than
答
选D
这是倍数的表达法,它比平常的价格高2倍还多