-- are you going to do?
--I'm going to check my email.[ ]
A.Where
B.What
C.How
D.Why
答案:B
法洛四联症患儿喜蹲踞是因为
A.心脑供血量增加
B.缓解漏斗部痉挛
C.下腔静脉回心血量增加
D.休息,缓解疲劳
E.增加体循环阻力,减少右向左分流血量
优思明的成分组成
A.屈螺酮3mg+炔雌醇0.035mgB.屈螺酮2mg+炔雌醇0.035mgC.屈螺酮2mg+炔雌醇0.03mgD.屈螺酮1mg+炔雌醇0.03mgE.屈螺酮3mg+炔雌醇0.03mg