【单选题】患者男 25岁 因手术后输血出现皮肤瘙痒眼睑、口唇水肿,应考虑为
【单选题】下列哪项不是常染色体显性遗传病的系谱特点:( )
B.
由于亲代印记所致,患者同胞的发病率明显与性别有关
D.
患者双亲中一方患病,致病基因不大可能由突变所致
【单选题】下列哪项不是常染色体显性遗传病的系谱特点
【单选题】The paragraph following the passage will most probably discuss ______.
A.
examples of successful young men
B.
how to build up one' s position in society
C.
joys and pains of old people
D.
what to do when one has problems in life
【判断题】中间继电器触点通过电流较小,所以一般不配灭弧罩。