“雷公炮炙十七法”是由（）代（）所总结。
参考答案：明代；缪希雍
— What a nice MP5! Whose is it?
— It's . My father bought me last week. [ ]
A. me
B. him
C. his
D. mine
局限性骨质密度减低，骨小梁消失，形成骨质缺损是（）
A．骨质疏松
B．骨质软化
C．骨质破坏
D．骨质增生硬化
E．骨膜增生
