心脏病孕产妇发生心力衰竭的最危险时期为____、____、____。
参考答案:妊娠32~34周;分娩期;产后3日内
We must tell hunters _____ wild animals. [ ]
A. to continue hunting
B. to stop to hunt
C. don't continue hunting
D. not to continue hunting
小儿,1岁,体格发育正常,体重9kg,身高75cm,头围46cm,其胸围最可能是()
A.34cm
B.40cm
C.46cm
D.48cm
E.52cm