Most of the big hotels in Shanghai were
题型：选择题
问题：
Most of the big hotels in Shanghai were full last week, But finally we ______find a room in a small one.
A．ought to
B．could
C．were able to
D．might
题型：选择题
按《建筑地基基础设计规范》(GB50007-2002)规定，桩身强度Q≤
。其中，
c为基桩施工工艺系数，该系数取值与下列()项有关。 ①桩周土性质；②桩型及成桩工艺；③桩端土性质；④桩的材料强度；⑤桩的材料刚度。
A．①③④
B．①②③④⑤
C．②
D．①③