<p><span style="font-size:16px;font-family:宋体">人工呼吸每次吹气量应为</span><span style="font-size:16px;font-family:'Calibri','sans-serif'">800—1200</span><span style="font-size:16px;font-family:宋体">毫升，吹气按每分钟</span><span style="font-size: 16px;"><span style="text-decoration:underline;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></span><span style="font-size:16px;font-family:宋体">的频率进行。</span></p>

1. A. 16—18次
2. B. 20—25次
3. C. 25—28次
4. D. 28—30次