补收旅客违章携带品手续费为1元/件。（部竞赛题《价规》）
参考答案：错
设a是最大的负整数，b的绝对值是最小的数，则b-a=______．
His health ________ because his business broke up.[ ]
A. broke out
B. broke down
C. broke off
D. broke into
