教学改革课题的结题是促进教改课题研究，实现教改课题研究目的的重要环节。

To end teaching reform tasks plays a vital role in improving the study and achieving the aim of teaching reform tasks.

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这个系统的主要目的，就是综合互联网上各种不同的信息，这也是数字图书馆计划的一个基础研究课题。

The main goal of this system is to integrate different kinds of digital resources on Internet, which is a basic research topic of digital library.

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因此，无论最终目的是为了适应气候变化还或是为了缓和气候变化，都有必要花费更多的精力去研究这样一个课题：为应对气候变化，农业可以做出怎样的贡献。

Whether the aim is adaptation to climate change or slowing it, there is an obvious need for more research on the benign contributions that agriculture can make.

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