浇注设备基础脚手架的高度如何计算？
参考答案：
从基础垫层上表面开始计算。
对闭孔动脉的描述，正确的是（）。
A.为股动脉的分支
B.与阴部神经伴行
C.对股内侧肌群供血
D.经血管腔隙出盆至股部
E.无分支分布于髋关节
The charity sale our school organizes every year has taught us much. _______ we would never have learned it in class.
A．Therefore
B．Meanwhile
C．Otherwise
D．Instead
