首先，发债主体多元化。

First, multi-faceted debt issuance bodies.

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三是注重校内课程资源开发中的双主体与多元化；

Third, to pay much attention to double subject and diversification.

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三是注重校内课程资源开发中的双主体与多元化；

Third, to pay much attention to double subject and diversification.

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