同样条件下的灌注桩承载力最大的是( )。

A．螺旋钻孔灌注桩

B．冲击振动灌注桩

C．单振振动灌注桩

D．复振振动灌注桩

There ____ a temple on the side of the mountain, didn't there?

A．would be

B．would have

C．used to have

D．used to be