标签：SPOT 相关文章
Why Does Spot Have Spots? In dogs with multicolored coats, white areas have no pigment cells. Black, brown or yellow areas, on the other hand, get their color from special pigment cells. When a dog is just an embryo, these pigment cells travel from t
英语听力文摘 English Digest
A Stationary Satellite, part 1 Some of the best devices in science have been anticipated by science fiction writers years before they existed. Occasionally a writer comes up with an idea that can be put into practice within their lifetime! Such is th
英语听力文摘 English Digest
Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s
原版英语小短文
By Parke Brewer Nuremberg, Germany 25 June 2006 Portugal's World Cup team practices ahead of big match against the Dutch The football teams from Portugal and the Netherlands put impressive streaks on the line when they face one another Sunday night
2006年VOA标准英语（六月）
Drones Help Scientists Spot Australia's Endangered Koalas 无人机帮助科学家发现澳大利亚濒危的考拉 Small endangered animals are often hard to find in their natural habitats, making it difficult for scientists to monitor them and deve
VOA标准英语2015年(三月)
ROBERT SIEGEL, HOST: When senators come back to Washington on Monday, a handful of Republicans will decide the fate of a bill that could reshape health care in America. Republicans have been promising for years to repeal and replace the Affordable Ca
2017年NPR美国国家公共电台7月
SCOTT SIMON, HOST: France's new government now has a ministry that's devoted to gender equality. It's led by a young author and blogger known for her frank writing on sex and sexism. NPR's Joanna Kakissis met her in Paris. JOANNA KAKISSIS, BYLINE: Pa
2017年NPR美国国家公共电台8月
By Kari Barber Dakar 10 January 2007 While current U.S. military attention is focused on removing possible al-Qaida cells in Somalia, some analysts say terrorist threats from other parts of Africa should also be closely monitored. They say Nigeria's
2007年VOA标准英语（一月）
Snake Vision Snakes have heat-vision that allows them to catch their dinners in the dark. True or false? True! It isnt quite right to call it vision, thoughmore accurate would be to say that certain specie s , such as rattlers, have pit s just under
英语听力文摘 English Digest
Hawaiis Next Island Look at a map of Hawaii and youll see volcanic islands strung out like pearls on a necklace. The biggestand the youngestis Hawaii, in the south-east corner. As the islands stretch away to the north-west they become older and more
英语听力文摘 English Digest
Mom's Genes Make Some Giraffes Hard to Spot Just like humans have virtually unique sets of fingerprints, every giraffehas a unique set of spots. Not that those spot patterns really help wildlife biologists identify their study subjects in real time.
2018年科学美国人10月
Snake Vision 即使在晚上，蛇也能凭借它超常的视力抓到食物。究竟为什么，听听就知道了。 Time for True or False.We 'A Moment of Science' gives you a scientific claim that you may have never heard before and then tells yo
英语听力文摘 English Digest