Doctor Ewy thinks the CPR guidelines should be changed again.
He said the heart association should remove rescue breaths from the guidelines.
He argues that more witnesses to cardiac arrests would provide treatment if rescue breaths are not a part of CPR.
今天S布置了一个作业，其实也就是问卷调查，就是把这阵子学过的音标进行一个复习，做过后才知道自己掌握的只有丁点半点，看来还要付出更多才能掌握住这些。
趁热打铁，继续加油！
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