激光诊断的方法有() ["激光光谱分析法","激光干涉分析法","激光散射分析法","激光衍射分析法","以上都是"]
急性期血吸虫病最常见的临床特征是() ["发热、过敏反应、肝脾肿大、腹泻,血中嗜酸性粒细胞增多","巨脾、腹水、腹泻与便秘交替出现或侏儒","慢性腹泻,脓血黏液便,肝脾肿大","癫痫发作,以局限性癫痫多见","发热、腹泻伴呼吸道症状明显,血嗜酸性粒细胞增多"]
钩虫成虫寄生于() ["肝内胆管","门静脉系统","内脏或皮下组织","横纹肌","小肠内"]
旋毛虫虫寄生于() ["肝内胆管","门静脉系统","内脏或皮下组织","横纹肌","小肠内"]
利用光动力学作用治疗恶性肿瘤的方法有() ["体表","组织间","腔内照射","综合治疗","以上都是"]
投资产品的的种类有哪些?