《医院管理评价指南》要求三级综合医院成分输血比例为()。
A、≥70%
B、≥75%
C、≥80%
D、≥85%
E、90%
参考答案:D
. So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.
A.then
B.what
C.that
D.which
5%的小儿动脉导管解剖闭合的年龄是()。
A.3个月
B.6个月
C.12个月
D.24个月
E.3岁