桥跨布置为9×30m,桥下地形起伏变化较大,墩身较高,该桥预制品吊装施工不宜选用( )
A. 简易型钢导梁
B. 联合架桥机
C. 双导梁架桥机
D. 跨墩龙门架
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定义外部类时不能用到的关键字是( ).
A. Finally
B. Public
C. protected
D. abstract
( )是对事物的抽象,而( )是对对象的抽和归纳。
exceed include exclude exclusive1. Women are still _________ from some London clubs.2. The price is for accommodation only, _________ of meals.3. The tour _________ a visit to the Science Museum.4. He accepts that he was _________ the speed limit.
混凝土灌注桩以工程量清单计算,如何计算
A. 体积
B. 面积
C. 根数
D. 长度