材料引用（Materials） 原文 The researchers say any kind of CPR improved chances ...

材料引用（Materials） 原文 He says this would save lives. Studies show that many...

材料引用（Materials） 原文 Seven hundred and twelve received CPR. Four hundred a...

材料引用（Materials） 原文 In all the cases, witnesses saw the event happen. Mor...

原材料引用（Materials） 原文 Doctors in Tokyo led the research. It examined more ...

一、原材料引用（Materials） However,a new Japanese study questions the usefulness...

1.原材料引用（Materlals） 正文：CPR keeps blood and oxygen flowing to the heart an...

1.原材料引用（Materlals） 正文：The heart stops pumping blood. ðəhɑrtstɑpsˈp...

1.原材料引用（Materlals） 原文：The condition is called cardiac arrest. /ðə/ ...