Why do scientists study rats?Rats are often used by scientists to learn more about diseases and medicine.What's so special about rats? This new research shows that a Norway rat has morethan 25,000 genes (基因) and about 90 percent of those genes are just like the onesyou'd find in mi...
29. Why do some students still keep the rats after research? B A. They want to teach the rats more skills. B. They have been closely connected with the rats. C. They need to do more experiments in the future. D. They have responsibility for caring for lab animals. 相关知识点: ...
that study was done on rats. FEMALE PROFESSOR:Well, it’s true that a direct connection between BDNF, physical exercise, and brain performance in people hasn’t been proven yet. But the sheer numbers of studies that indicate a connection in animals say a lot, in my view. And exercise ...
Maybe you wonder do they make chirping noises like some other animals do? Those are interesting questions, but to answer them it is important not to get hung up on terminology. When most people think of a chirping noise, they immediately associate that with a bird. The truth is that ...
A.Ways of saving people B.Rats and robots C.After earthquake D. Rats for rescue 答案 36.B 根据第二段 a new research project is using a smaller animal to save lives:the rat知,老鼠可以帮助救援人员找到幸 存者,故选B.37.B 根据第三段知老鼠通过训练后就能够闻到人的体味。 当老鼠闻到人...
What is the purpose of the new research project? (B) A. To make a comparison. B. To help rescue people. C. To reduce the work of rescuers. D. To charge robots.30. What's the main reason why rats are better than robots to find survivors? A. Rats have natural ability to find ...
阅读理解A People love cellphones, which is why nine in ten Americans own one. But does heavy use of cellphones pose a risk of cancer? This question has caused controversy for many years. A new study in rats now augments those concerns. Its dat a linked long-term,intense exposure to rad...
"Rats have a sense of empathy and there has been a lot of research on what happens when you take babies away from a mother rat -- not surprisingly, they experience profound distress," Dr. Jessica Pierce, a bioethicist, was quoted by the report as saying. ...
Research is preliminary, but several studies suggest people who spend most of their days sittingare more likely to be fat, have a heart attack or even die. In an editorial published this week in the British Journal of Sports Medicine, Elin Ekblom-Bak of the Swedish School of Sport and Heal...
1.In the writer’s opinion, rats may become man’s new friends because. A. they can be food for people B. they can help rescuers to find living people C. they are lovely D. they can completely take the place of man to carry out rescue jobs ...