骨性关节炎的非药物适当治疗不包括() ["A．活动范围练习","B．应用热或冰","C．抗阻运动与有氧运动","D．减重","E．下蹲负重训练"]
转移性肝癌表现为不规则强回声后伴声影，多来自于() ["A．肺癌","B．结肠或直肠腺癌","C．乳腺癌","D．恶性淋巴瘤","E．肾癌"]
对肝细胞肝癌有特异性的检查是() ["A．甲胎蛋白","B．碱性磷酸酶","C．胆红素","D．血尿素氮","E．胰岛素"]
请简述流行性斑疹伤寒的病理变化。
请简述流行性斑疹伤寒的发病机制。
请问如何治疗恙虫病?
