重大变化之一是在详细解释信息技术支持和服务的那一章。

One of the biggest changes comes in the chapter that spells out information technology support and services.

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同时，代理销售相关的产品并提供相关的技术支持与咨询服务，保证用户对于信息技术的需求，助力客户迎接未来的挑战。

Meanwhile, as the sales agent of related products, provide related technical support and consulting services, to ensure the customer's demand for IT and help customers meet the challenges in future.

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然后，论述信息技术如何为信息服务体系做技术支持。

Then, the thesis elaborates how the information technology makes the technical support for the information service system.

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