题目

He was in hospital for six months. He felt as if he was ___from the outside world. A. cut out   B. cut off   C. cut up    D. cut through   答案：B一个长方体容器从里面量长是15厘米，宽是12厘米，高是18厘米，里面装满水，如果把这些水全部倒入一个棱长是20厘米的正方体容器中，水面高是多少厘米？