99×99+99.
99×99+99,
=99×(99+1),
=99×100,
=9900.
某大底盘单塔楼高层建筑,主楼为钢筋混凝土框架-核心筒,与主楼连为整体的裙房为钢筋混凝土框架结构,如图所示。本地区抗震设防烈度为7度,建筑场地为Ⅱ类。
假定裙房的面积、刚度相对于其上部塔楼的面积、刚度较大时,试问,该房屋主楼的高宽比取值应最接近于下列何项数值,说明理由。()
A.1.4
B.2.2
C.3.4
D.3.7
Helen had to shout above the sound of the music. [ ]
A. making herself hear
B. to make herself hear
C. making herself heard
D. to make herself heard