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[00:09.40]Reading [00:10.55]STUDYING PLANTS IN THE WILD [00:12.25]The study of natural history is not something to be left to biologists. [00:17.99]In fact, their capacity in terms of the time they can spend away from their offices is very limited. [
高中英语人教版必修第三册
[00:09.40]Reading [00:10.55]STUDYING PLANTS IN THE WILD [00:12.25]The study of natural history is not something to be left to biologists. [00:17.99]In fact, their capacity in terms of the time they can spend away from their offices is very limited. [
高中英语人教版必修高三
Darwin's fabled isles, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands restoration. But six species that were set to be exterminated have gotten a reprieve. Because a new study fin
Scientific American(十一)月
August 20th, 1998, American cruise missiles pound alleged Al-Qaeda training camps in Afghanistan and a pharmaceutical plant in Sudan. The attacks are retaliatory strike after the deadly bombings of two US embassies in East Africa just weeks earlier.
历史上的今天-2014年
August 20th, 1998, American cruise missiles pound alleged Al-Qaeda training camps in Afghanistan and a pharmaceutical plant in Sudan. The attacks are retaliatory strike after the deadly bombings of two US embassies in East Africa just weeks earlier.
历史上的今天-2015年