单项选择题
A.15504B.1900C.2000D.15554
A.1800B.1850C.1900D.2000
A.10000B.4901C.5000D.5901
A.3600B.4000C.4500D.5000
A.602020B.542818C.513217D.453916
A.16B.12C.7D.21
A.7张B.9张C.6张D.4张
A.5幢B.8幢C.4幢D.6幢
A.1450,550B.1250,750C.1400,600D.1150,850
A.5000元B.2900元C.4500元D.3000元
A.4056B.4024C.4080D.3984