先天性腹股沟斜疝的发病因素主要是()
A.腹内压过高
B.腹壁强度降低
C.腹壁缺损
D.腹膜鞘状突未闭
E.先天性腹横肌和腹内斜肌发育不全
参考答案:D
This medicine will ____ him of his cough.
A.recover
B.cure
C.treat
D.heal
移植心脏病人的血钾应不超过()
A.3.0mmol/L
B.3.5mmol/L
C.4.0mmol/L
D.5.0mmol/L
E.6.0mmol/L