A.50元的整數(shù)倍 B.100元的整數(shù)倍 C.500元的整數(shù)倍 D.1000元的整數(shù)倍
A.3個 B.2個 C.1個 D.無數(shù)
A.一日一價 B.一日二價 C.二日一價 D.一周一價