第三部分从理论和实际两方面探讨认购书与买卖合同的关系。

Part three mainly explores the relationship between the subscription book and the selling and buying contract from the aspects of practice and theory.

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认购流失较低，马丁女士说，这“实际上说的恶化正在放缓，这将托起盈利了。”

The subscription churn was lower, Ms. Martin said, which "really says the deterioration is slowing, it will hold up earnings longer."

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