成人股骨头缺血坏死股骨头密度增高的病理基础为()
A.骨小梁断裂嵌插
B.骨小梁表面新骨沉积
C.骨髓钙化
D.骨皮质增厚
E.骨质吸收
参考答案:A, B, C
She is kind and helpful. She always _____ her friends. [ ]
A. gets on well with
B. getting well
C. getting on well with
D. gets well
自然美、社会美、艺术美统称为什么()
A、审美原则
B、审美主体
C、审美对象
D、审美经验