A.先伸胳膊后蹬腿,并攏伸直漂一會(huì) B.胳膊和腿同時(shí)動(dòng),并攏伸直漂一會(huì) C.兩腳外翻對(duì)準(zhǔn)水,并攏伸直漂一會(huì) D.慢慢蹬腿不夾水,并攏伸直漂一會(huì)