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问题陈述（Problem Statement）定义及结构

最近有同学问 problem statement 和 literature review 到底有什么不同。那我们今天就来看看到底什么problem statement 和它的基本结构。 一般来说，问题陈述（Problem Statement）是把目前你要研究领域存在的问题，并解释为什么这很重要。 一个好的问题陈述它是一个很好和 ...
中国日报网

Everglades National Park–one of the world's great biological wonders

From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. I’m Faith Lapidus. And I’m Shirley Griffith. This week, we tell about Everglades National Park in the American state of ...
新浪网

Are pythons invading the Everglades?

Burmese pythons are one of the most popular animals in the global pet trade. But many pet owners who purchase these colorful, non-venomous snakes quickly realize that they have more pet than they ...