单项选择题
A.利润 B.税金 C.规费 D.措施费
A.框架梁 B.连梁 C.基础梁 D.基础连系梁
A.C14@150+C12@150 B.C14/12@150 C.C14@150/C12@150 D.C14@150;C12@150