题目

Friendship is like money: easier made than ________. A . to be kept B . keeping C . kept D . being kept 答案：C计算（1）2+（﹣3）+（﹣6）+8（2）1﹣（﹣4）÷22× （3）（ ﹣ + ）÷（﹣ ）（4）﹣12×8﹣8×（ ）3+4÷ ．