While fossil fuels—coal，oil，gas—still generate roughly 85 percent of the world’s energy supply, it s clearer than ever that t... 详情>>

Madrid was hailed as a public health beacon last November when it rolled out ambitious restrictions on the most polluting cars ... 详情>>

本文的最佳标题可能是什么。通读全文，我们可以看出作者重点介绍的无用知识的有用性，通过普林斯顿高等研究院重新再版弗莱克斯纳的文章《无用知识的有用性》这一... 详情>>

从题干” some celebrities star in a new video to”定位第一段第3句：“ They’re part of a bunch to celebrities starring in a new vi... 详情>>

The strategy also aims to ensure that carbon in woody material removed from the forests is locked away in the form of solid lum... 详情>>

【答案】C foster a child’s moral development【解析】根据题干“researchers”, “guilt”, “a good thing”关键词定位到第一段最后一句，除此之外... 详情>>

Read the following text Choose the best word (s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET Weighing... 详情>>

That boy was Bill Gates, and he hasn’t stopped reading yet—not even after becoming one of the most science fiction and referenc... 详情>>