患着，男性， 28 岁。右胸外伤后发生肋骨骨折 入院，患者极度呼吸困难，发绀，右胸壁可见反常 呼吸运动，首要的急救措施是
A、加压给氧D
暂无解析
Americanseat______vegetablesperpersontodayastheydidin1910.
Thesuspectcooperatedfullywiththepolicewhen______abouthisroleintheincident.
Aftermonthsofvoyage,Columbusarrivedin______laterprovedtobeanewcontinent.
按计划免疫程序，小儿接种麻腮风减毒活疫苗的适宜年龄是（）
Shewasso______thenoisethatshesentthechildrentobed.
