妊娠足月时子宫血流量约为:
A.35cm,1000gB.45cm,2500gC.16cm,110gD.25cm,320gE.50cm,3400g胎儿身长,体重
参考答案:B
_____ was very ____ that little Jim wrote the letter.
A.It; careful
B.It; carefully
C.He; careful
D.He ; carefully
下列哪项臀先露发生率高
A.混合臀先露
B.完全臀先露
C.双足先露
D.腿直臀先露
E.单足臀先露