原材料引用—— The study was published in the British medical magazine, The Lan...
原材料引用—— However, a new Japanese study questions the usefulness of mouth-...
原材料引用—— CPR keeps blood and oxygen flowing to the heart and brain. /siː-...
原材料引用—— CPR combines breathing into the victim's mouth and repeated pres...
原材料引用—— Without lifesaving measures, the brain starts to die within four...
1.原材料引用——This is the VOA Special English Health Report. 2.信息与事实—— 学习三个辅音...
原材料引用——The condition is called cardiac arrest. 信息和事实—— 学习音标:/ʃ/ /ʒ/ /k/ ...
原材料引用——例句:Cardio Pulmonary Resuscitation or CPR can save the life of who...
原材料引用——This is the VOA Special English Health Report. 信息和事实—— 练习这两组英标的读音...