HLA-B27用于（） ["类风湿关节炎","强直性脊柱炎","增生性关节炎","痛风性关节炎","风湿性关节炎"]
双侧前额叶损伤的临床表现有（） ["注意力不集中","判断力和理解力差","书写不能","记忆力欠缺","精神和性格改变"]
大多数小儿急性肠套叠属于下列哪项？（） ["继发性","原发性","局限性","动力性","麻痹性"]
在经皮椎体成形术中，在哪一阶段将骨水泥注入椎体内（）。 ["凝固阶段","稀薄阶段","硬化阶段","黏稠阶段","产热阶段"]
ASO用于诊断（） ["类风湿关节炎","强直性脊柱炎","增生性关节炎","痛风性关节炎","风湿性关节炎"]
如何对烟草焦油量进行遗传改良？
