建筑施工图包括哪些内容？
参考答案：
包括建筑平面图，建筑立面图、建筑剖面图。
By 16:30, ______ was almost closing time, nearly all the paintings had been sold.[ ]
A. which
B. when
C. what
D. that
压载舱扫舱喷射器的抽水原理为（）。
A.离心
B.液压
C.虹吸
