2岁男儿髋臼指数的正常值为（）
A.20°以内
B.25°～30°
C.35°～40°
D.40°～45°
E.45°～50°
参考答案：A
Out of _______ for the homeless children he gave them shelter for the night. [ ]
A. pity
B. shame
C. sympathy
D. mercy
中、低压容器筒节上管孔中心线距纵向及环向焊缝边缘的距离，应不小于管孔直径的（）倍。
A.0.2
B.0.4
C.0.8
D.2
