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None of the five centenarians have any children. 查看材料

A. Right
B. Wrong
C. Not mentioned

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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

Last week， I called on my teacher.

A. telephone
B. rang
C. visite
D. saw

关于骨性关节炎下列哪项正确()

A. 病变关节显像剂异常浓聚
B. 三时骨显像血流相异常，血池相正常
C. 病变关节显像剂稀疏分布
D. 三时骨显像血流相正常，血池相异常

He was resolute in his attempt to climb up to the top of the mountain.

A. disgusted
B. determined
C. tried
D. disappointed