【单选题】为比较两疗法治疗单纯性消化不良治愈率的优劣,为临床用药决策提供依据,某研究用甲、乙两种疗法治疗单纯性消化不良患者71例,结果见下表。假设检验结果 ,则按 水准,结论为:
B.
拒绝 ,接受 ,尚不能认为两疗法治愈率有差别
【单选题】I had told them the reason, ______ I didn't attend the meeting.
【判断题】万用表测量发电机励磁绕组的阻值为2Ω,结果表明励磁绕组正常。
【单选题】关于踝足部运动学说法不正确的是
C.
足的外侧缘提起、内侧缘下降,足底转向外下方称为外翻
D.
足的内侧缘提起、外侧缘下降,足底转向内下方称为内翻
【单选题】由企业自己承担风险事故所致损失的财务型风险管理方法是( )。
【单选题】I had told them the reasons, ___I didn't attend the meeting.