鼓胀的主症是() ["全身水肿","单腹胀大","下肢水肿","头面四肢水肿","以上都不是"]
据大量调查知,健康成年男性身高的均数为170.0cm,某医生在某山区随机调查了30名健康成年男性,其身高均数为168.9cm,标准差为9.7cm。欲比较该山区健康成年男性与一般健康成年男性的身高是否有差异,检验统计量的计算公式为() ["['

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治疗心力衰竭合并快速心房颤动,使心室率减慢应首选() ["奎尼丁","普萘洛尔","洋地黄","利多卡因","维拉帕米"]
心房颤动对心功能的影响取决于() ["房率的快慢","原有心脏病的轻重","是否伴有栓塞","室率的快慢","心房内是否有血栓"]
鼓胀的病变脏器主要在() ["肝、肾","脾、肾","肝、脾","肺、脾、肾","肝、脾、肾"]
有较好的镇痛作用和弱的消毒作用()。有较强的消毒作用并有明显刺激性()。有较强的消毒作用,对根尖周组织的刺激性小()。