毛细血管脆性试验阳性可见于下列疾病,但除了()
A.过敏性紫癜
B.血友病
C.血小板减少性紫癜
D.维生素C缺乏症
E.亚急性感染性心内膜炎
参考答案:B
The children all turned__________the famous actress as she entered the classroom.
A.looked at
B.to look at
C.to looking at
D.look at
心肺复苏心脏按压时,按压与放松时间之比应为()。
A.70%:30%
B.60%:40%
C.50%:50%
D.40%:60%
E.30%:70%