Firstly, it is from the connotative and denotative meanings of securities margin trading to generally introduce securities margin trading system.

首先，从证券信用交易的内涵及外延入手，对证券信用交易制度进行了概括介绍。

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Firstly, it is from the connotative and denotative meanings of securities margin trading to generally introduce securities margin trading system.

首先，从证券信用交易的内涵及外延入手，对证券信用交易制度进行了概括介绍。

youdao