單項選擇題先兆流產(chǎn)()

A.停經(jīng)后少量陰道流血,輕微下腹痛,宮口未開,胎膜未破
B.停經(jīng)后多量陰道流血,下腹陣發(fā)性劇痛,宮口開大,胎膜已破
C.停經(jīng)后多量陰道流血,有肉樣組織排出,子宮小于停經(jīng)周數(shù),宮口開大,體溫增高
D.停經(jīng)后出現(xiàn)反復陰道流血,子宮明顯小于停經(jīng)周數(shù),尿妊娠試驗陰性
E.停經(jīng)3月,子宮如孕40天大小


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