#全国职称英语等级考试应试指导-卫生类--强化训练题3(3)2 搜索结果
BloodWhenyoucutyourself,someverysmallbloodvesselsbreak,andalittlebloodescapes.Soonthebloodclots.Itformsathickjellythatplugsthecut.Fromsuchexperienceswealllearnthatbloodisred,thickerthanwater,sticky,andsaltyint
02-09