原材料引用(Material): However, a new japanese study questions the usefulness of the mouth-to...
原材料引用(Material): CPR keeps blood and oxygen flowing to the heart and brain.信息和事實(shí)(Facts)...
原材料引用(Material): Without lifesaving measures, the brain starts to die within four to si...
原材料引用(Material): The condition is called cardiac arrest. 信息和事實(shí)(Facts): 跟著《劍橋國(guó)際英語(yǔ)語(yǔ)音教程(美音...
原材料引用(Material): Cardiopulmonary resuscitation, or CPR, can save the life of someone wh...
原材料引用(Material): (全文) 信息和事實(shí)(Facts): (聽著原聲跟讀了2、3次绸硕,然后完成了預(yù)習(xí)錄音) 感受與評(píng)價(jià)(Comments): 自己讀與聽錄音感覺還...