在爆发调查中,对假设进行检验,应当能证明()。 ["所有病例、实验室资料和流行病学证据与初步假设是一致的","没有其他假设与该资料相符","统计学有显著性差别","采取干预措施后效果不佳","暴露程度越大,疾病的发生率越高"]
蛋白质分子α螺旋结构特点是() ["氨基酸残基的侧链伸向螺旋外侧","多为左手螺旋","靠离子键维持稳定","螺旋走向为逆时针方向","肽链充分伸展呈锯齿状"]
下列哪种肺炎可呈爆发流行() ["A.肺炎球菌肺炎","B.肺炎支原体肺炎","C.肺炎克雷白杆菌肺炎","D.军团菌肺炎","E.金葡菌肺炎"]
Hallervorden-Spatz病可出现() ["手足徐动症","肌强直","舞蹈症","静止性震颤","肌张力障碍"]
通过凝胶过滤层析柱时,最先被洗脱的蛋白质是() ["Mb(Mr:68500)","血清白蛋白(Mr:68500)","牛胰岛素(Mr:5700)","马肝过氧化氢酶(Mr:247500)","牛ν-乳球蛋白(Mr:35000)"]
五苓散的药物组成有()。猪荃汤的药物组成有()。