下面哪个光圈系数的镜头进光量最大?() ["1.4","4","8","11"]
高血压的诊断标准是() ["收缩压≥130mmHg和/或舒张压≥85mmHg","收缩压≥130mmHg和/或舒张压≥90~100mmHg","收缩压≥140mmHg和/或舒张压≥85mmHg","收缩压≥140mmHg和/或舒张压≥90mmHg","收缩压≥140mmHg和/或舒张压≥95mmHg"]
沉积接触是指()的接触关系。() ["先有沉积岩,后有岩浆岩","先有岩浆岩,后有沉积岩","沉积岩之间","岩浆岩之间"]
合作教学模式的主要特点是() ["师生问答,启发教学","教师中心,系统授课","互教互学,合作教育","问题中心,论文答辩"]
关于急性心肌梗死后心律失常的处理措施不妥的是() ["持续阵发性室性心动过速,首选利多卡因静注","室上性快速心律失常多用维拉帕米","快速型心律失常时可用阿托品","发生二度Ⅱ型或三度房室传导阻滞,可植入人工心脏起搏器","持续多形性室性心动过速时,应尽快采用非同步直流电除颤"]
曾经是世界上最大邮船的“伊丽莎白女王”号是怎样一艘船舶?