I stressed in the third lecture that like any — insurance, like any other risk management device, is an invention.
在第三次课上我已经强调过了，保险和其它风险管理工具一样，是一种发明。
Every risk management device relies on a design and the design is usually complex and has — it all has to work together.
每种风险管理工具都是基于某种设计，而这种设计通常都是很复杂的，需要各部分相互之间的配合。
CONCLUSION IABP is a simple and effective circulation assistance device and its use should be encouraged in the management of high-risk CABG patients.
结论IABP是一种简单有效的循环辅助手段，心功能差的高危CABG患者应积极地放置IABP。
CONCLUSION IABP is a simple and effective circulation assistance device and its use should be encouraged in the management of high-risk CABG patients.
结论IABP是一种简单有效的循环辅助手段，心功能差的高危CABG患者应积极地放置IABP。
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