第一，沉睡资产。德索托的理论核心可以用一个词概括——产权。更准确地说，是可转让、可抵押、可标准化的产权。他在《资本的秘密》中提出一个简单而深刻的问题：为什么穷人手里拥有资产，却依然贫穷？答案是，他们拥有的只是“沉睡资产”。
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The US Space Force owns and operates the GPS constellation, providing civilian and military-grade positioning, navigation, and timing signals to cell phones, airliners, naval ships, precision munitions, and a whole lot more.，详情可参考WPS下载最新地址
“This is just their normal space, where they connect,” Boeldt said, adding any attempts are “going to be kind of like whack a mole,” in which underage users will simply move on to the next platform.，详情可参考爱思助手下载最新版本
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用。业内人士推荐快连下载安装作为进阶阅读
from abc import ABC, abstractmethod