除了多元化外，指数基金还具有低费用的好处，因为他们是被动式管理，这意味着它们不依赖于人来研究和选择股票。
Aside from being diversified, index funds carry the added benefit of having low fees since they're passively managed, which means they don't rely on a person to research and select stocks.
本文介绍了中国农村乡镇卫生院被动式太阳能暖房全球环境基金项目的实施。
The implement of passive solar heating for health clinics of rural villages and towns in China is introduced. The testing data of these buildings were measured and analyzed.
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