可以使用洗衣厂的POS系统对客人进行（）。
A、增加
B、查询
C、修改
D、删除
参考答案：B
What would have happened _____, as far as the river bank? [ ]
A. Bob bad walked farther
B. if Bob should walk farther
C. had Bob walked farther
D. if Bob walked farther
清肺泄热饮功效与作用
