社区获得性肺炎最常见的致病菌是() ["肺炎克雷白杆菌","金黄色葡萄球菌","肺炎链球菌","肺炎军团菌","铜绿假单胞菌"]
滤波器在满足传输条件时,工作在通频带内时的特性阻抗为()。 ["电感性","电容性","电阻性","不一定"]
卵磷脂的合成需下列哪种物质参与() ["FH4","VitC","GTP","SAM","NADPH"]
为便于统计燃油发放数量,考核机车油耗,统一规定()为燃油密度调整起始日。 ["每月一日","每月十日","每月十五日","每月二十日"]
甲类传染病是指() ["鼠疫、狂犬病","黑热病、炭疽","鼠疫、炭疽","鼠疫、霍乱","炭疽、霍乱"]
医疗经办机构在某离休干部出院后第三个月为其报销了医药费,该医疗经办机构是否拖欠了医药费?没有。