单词：bloodless operation
单词：bloodless operation 相关文章
The Arctic region is warming faster than any other region on earth, more than twice the rate of the global average according to recent reports. This means, among other things, that areas of the Arctic Ocean that were formerly inaccessible to humans a
VOA标准英语2017年(五月)
When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea
2016年Scientific American(十)月
Animals at Risk from Increased Arctic Shipping The polar bear may be the animal most often identified with climate change, but it is far from the only creature at risk from rising temperatures. The northernmost part of Earth is warming two to three t
2018年VOA慢速英语(七)月
Whale Deaths On the Rise in Alaska 阿拉斯加鲸鱼死亡数量有所上升 American scientists have reported a sharp increase in the number of dead whales found in the Gulf of Alaska. From May through August, 30 whales washed up along the coast of
2015年VOA慢速英语(九)月
By Paul Sisco Washington, DC 01 February 2008 Scientists know that the waters north of Greenland, around the Arctic Circle, significantly influence global weather patterns. But until recently, they only have been able to measure the region's deep oce
VOA常速英语2008年（二月）
The polar oceans are not biological deserts after all. A marine census released recently documented 7,500 species living in the Antarctic and 5,500 in the Arctic, including several hundred that researchers believe could be new to science. Most of the
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