A.when was your vessel built B.at what time is your vessel building C.when is your vessel built D.at what time you built your vessel
A.盆腔超聲B.病理學檢查C.分段診刮D.繼續(xù)做宮腔鏡檢查
A.出發(fā)點B.維持點C.立足點D.基礎點