A.會(huì)陰切開(kāi)術(shù) B.剖宮產(chǎn)術(shù) C.吸引器助產(chǎn)術(shù) D.產(chǎn)鉗助產(chǎn)術(shù) E.臀位助產(chǎn)術(shù)