Various systems linked together, complement each other, constitute the core of the basic system of investor protection.

各项制度环环相扣、相得益彰，共同构成了投资者保护基本制度核心内容。

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This paper discusses some basic properties of finite complement Spaces in general topology and gives its application in symmetric Spaces.

对一般拓扑中的有限补空间的基本性质进行讨论，并给出对称度量空间的应用。

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OWL supports the basic set operations, namely union, intersection and complement.

OWL支持基本的集合操作，即并，交和补运算。

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Cash transfers have been successful in Latin America, he says, because they are "seen as a complement, not a substitute, for public provision of health, education and other basic services".

BBC: Will cash transfers work in India?