石灰的硬化只是碳化硬化的结果。
参考答案：错
— What a nice watch! Is it yours?
— Of course. I _____ 180 yuan on it. [ ]
A. cost
B. took
C. spent
以下哪一因素不是影响药物代谢的病理因素
A．肝、肾功能B．胃肠疾患C．心血管功能D．妊娠E．内分泌功能
