题目内容
42（）
查看答案
搜索结果不匹配？点我反馈
更多问题
Text 1 Two years ago, Dimas Aliprandi and Elton Plaster didn’t know of each other’s existence. Then they learned they had been switched (调换) at birth by mistake more than 20 years ago. The discovery didn’t bring bitterness. Rather, it led to the creation of a bigger family. The chain of events started with Dimas, who was always wondering why he did not look like the four sisters he grew up with. He was 14 when his doubts grew after watching a TV news report on babies getting switched at birth because of mistakes at hospitals. He wanted to do a DNA test, but it was too expensive for the family. A decade later, Dimas did it on his own. The DNA test showed that he was not the birth son of the man and woman who had raised him. The news was a shock for his parents. They at first refused to believe the results, but eventually decided to help him look for his biological parents. The search began at the Madre Regina Protmann Hospital where records were checked. The hospital searched its records and found Elton Plaster was bom there on the same day. The records led Dimas to the 35 - acre farm where Plaster lived with his parents, Nilza and Adelson, in the town of Santa Maria de Jetiba, about 30 miles from the Aliprandi home in Joao Neiva. After tests, the Plasters discovered that Elton was the biological son of the man and woman that Dimas had been calling Mom and Dad for 24 years. Meanwhile, the couple Elton had always regarded as tus biological parents were Dimas’ parents. About a year ago, Aliprandi and the parents who raised him accepted an offer from the Plasters to move to their farm, where they built a home. “This is the way it should be,” Adelson Plaster recently told Globo TV. “We are all together and I now have two sons living and working here.” What did the Aliprandis do when they knew about the baby switch（）
49（）
41（）
Text 4 New York—By studying blindfolded college students who move through grass to find a chocolate scented (有…气味的)path by smelling, researchers say they’ve found evidence of a human smelling ability that scientists thought impossible. The study shows the human brain compares information it gets from each nostril (鼻孔) to determine where a smell is coming from. And it suggests dogs and mice and some other mammals (哺乳动物) do the same thing, unlike what most scientists have thought. People compare signals (信号) from each ear to determine the direction of a noise. But most scientists’ idea has been that mammals can’t do it in the same way for smells, because their nostrils are too close together to get different signals. “We debunked that, said Noam Sobel of the University of California, Berkeley, who reported the new results Sunday with graduate student Jess Porter and others on the Website of the magazine Nature Neuroscience. The report isn’t the first to suggest the two-nostrii idea. But Sobel and his team have now “opened the doors for full consideration of it,” said a researcher familiar with the work. Most of the paper focuses on what a group of undergraduate psychology students could do in a garden on the Berkeley campus. One outdoor experiment was designed to see if people could use just their noses to follow a 30-foot-long path of chocolate scent through the grass. The path was laid out with scented ropes. But the 32 students were blindfolded and equipped with thick gloves to make sure they couldn’t see or feel it. Two-thirds of the students succeeded in following the scent. Another experiment found that the volunteers succeeded only one-third of the time with one nostril taped shut. What does the underlined word “debunked” in paragraph 4 mean（）
微信支付 
支付宝支付