第19题:[单选题]对溺水者实施心肺复苏急救作业的程序为( )。 A. (清理口腔异物)→(打开气道)→(人工呼吸—胸外按压循环) B. (清理口腔异物)→(胸外按压—人工呼吸循环)→(打开气道) C. (打开气道)→(清理口腔异物)→(胸外按压—人工呼吸循环) D. (清理口腔异物)→(人工呼吸—胸外按压循环)→(打开气道) 参考答案:A
第22题: [单项选择]The world's supplies of copper() A. have gradually being exhausted B. are gradually exhausted C. has been gradually exhausted D. are being gradually exhausted 参考答案:D