胆管结石的介入治疗方法包括______________________、_____________________和____________________。
肿瘤放射敏感性取决于() ["A．组织来源 ","B．分化程度 ","C．肿瘤的大体分型 ","D．病人的一般情况 ","E．是否转移 "]
术中放疗适用于哪些肿瘤的治疗() ["A．肺癌 ","B．乳癌 ","C．鼻咽癌 ","D．胃癌 ","E．胰腺癌 "]
腔内治疗可用于那些肿瘤的治疗() ["A．鼻咽癌 ","B．乳癌 ","C．食道癌 ","D．宫颈癌 ","E．原发性肝癌 "]
下列哪些是高LET射线() ["A．高能X线 ","B．中子线 ","C．γ-射线 ","D．质子线 ","E．α粒子 "]
试述慢性呼衰导致肺源性心脏病的机制。
