如何进行操作指导?
构成人体的系统有:() ["泌尿系统","消化系统","运动系统","呼吸系统"]
关于骨质疏松症正确的是:() ["常见于老年人,男性多于女性","绝经后骨质疏松症属继发性","严重的骨质疏松症可以引起骨折","X线检查可为骨质疏松症的诊断提供依据,但其敏感性低"]
能使石油和天然气在其孔隙和裂缝中流动,并能聚集油气的岩层称为()。 ["含油层","盖层","储集层","隔层"]
下列软骨中属于弹性软骨有:() ["会厌软骨","关节盘软骨","耳廓软骨","椎间盘软骨"]
简述开展讨论法教学的好处。