Leaver feels sad about her old age. 查看材料
A. Right
B. Wrong
C. Not mentioned
Success often depends on temperament.
A. education
B. aristocracy
C. disposition
D. experience
None of the five centenarians have any children. 查看材料
A. Right
B. Wrong
C. Not mentioned
Legg-Perthes病是()
A. 代谢性骨病
B. 儿童特发性股骨头坏死
C. 畸形性骨炎
D. 强直性脊柱炎