【单选题】某女,38岁。心尖搏动位于第6肋间左锁骨中线外6.0cm,胸骨左缘4肋间闻及舒张期叹气样杂音。既往有风湿病史,最可能的诊断是
【单选题】根据关系模式的完整性规则,一个关系中的主键()
【单选题】Why was Douglas Gentile not surprised by the fact that 42% of US children 8 and younger now have their own tablet devices?
A.
Because he became accustomed to seeing children using smartphones.
B.
Because he was not interested in the effects of media use on children.
C.
Because the percentage was not high compared with that of other countries.
D.
Because he seldom saw children using smartphones.
【单选题】某女38岁。心尖搏动位于第6肋间左锁骨中线外0cm胸骨左缘3、4肋间闻及舒张期叹气样杂音。既往有风湿病史最可能的诊断是
【单选题】___tablet computers like Apple’s iPad just before bed, a research says rencently, can lead to poor night’s sleep.
【多选题】关于定题演讲,可从哪些方面进行准备?( )
【单选题】某女, 38 岁。心尖搏动位于第 6 肋间左锁骨中线外 1.0cm ,胸骨左缘 3 、 4 肋间闻及舒张期叹气样杂音。既往有风湿病史,最可能的诊断是
【单选题】4肋间闻及舒张期叹气样杂音。既往有风湿病史,最可能的诊断是