题目: 患者,男,30岁,受到多种细菌感染,并发现缺乏C3成分,那么在该患者中哪些由补体介导的功能将不会受到影响()。A.裂解细菌B.对细胞的调理C.产生过敏毒素D.产生中性粒细胞趋化因子E.调节血小板的功能 答案: 参考答案:E
题型:单项选择题 An analyst does research about various bond yields. An analyst stated that computing both a bond's current yield and a bond's yield to refunding assumes that all interim cash flows from the bond are reinvested at that bond's yield to maturity. Is the analyst correct with respect to interim cash flows and computing a bond's:()A.B.C. 查看答案
题型:单项选择题 已知服从正态分布某医学指标,求得算术平均数(),标准差(S)。区间[-1.96S,+1.96S]所代表的含义为()A.样本均数的95%可信区间B.总体均数的95%可信区间C.该医学指标的90%正常值范围D.该医学指标的95%正常值范围E.该医学指标的99%正常值范围 查看答案