问题补充：
单选题Theenlargedschoolcampusistheoldone.A.as three times big asB.three times as big asC.big three times thanD.as big as three times
答案：
B解析倍数(twice...times)+as+形容词/副词的原级+as+比较对象。因此，本题可表达为：1)twice/two times bigger than2)three times as big as3)three time the size of
