休克患者补充血容量时,晶体液和胶体液的比例为()
A.3:1
B.2:1
C.1:1
D.1:2
E.1:3
参考答案:A
My daughter________ hard for more than one year to realize her dream joining the Party and now her dream comes true.
A.works
B.is working .
C.has worked.
D.worked
被称为"危险期"或"心理断乳期"的时期发生在_____________阶段。