A.1h B.3h C.6h D.12h E.24h
A.10ml B.20ml C.30ml D.40ml E.50ml
A.早期妊娠診斷 B.流產(chǎn)診斷和監(jiān)察 C.異位妊娠的診斷 D.胎兒發(fā)育情況監(jiān)測(cè) E.妊娠滋養(yǎng)細(xì)胞疾病的診斷