A.35cm,1000g B.45cm,2500g C.9cm,20g D.40cm,1700g E.25cm,300g
不同的孕周胎兒發(fā)育特點(diǎn)為:
A.40周末 B.20周末 C.24周末 D.28周末 E.32周末 F.36周末
A.5~10ml B.30ml C.300ml D.1000ml E.800ml