These two changes produced the basic differences between Middle English and Modern English.

这两个变化在中世纪英语和近代英语中产生了基本区别。

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This paper presents the basic concept end the method of Markov Chains. TWO problems in the forestry prediction concerning predicting forest diseases and changes of forest resources were discussed.

本文介绍了马尔可夫链的基本概念和方法，并就在林业预测中的两个问题——林木病害预测和森林资源变化预测进行了讨论和分析。

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Most anthropogenerated climate change is mediated through changes in the two basic variables of temperature and precipitation.

FORBES: Countdown To Climate Change: It's Only 297 Years Away!