药学硕士近5年考研国家线的变化趋势是怎样的，快来了解一下！

Rats and other animals need to be highly at tuned to social signals from others so that can identify friends to cooperate with and enemies to avoid.To find out if this extends to non-living beings,Loleh Quinn at the University of California,San Diego,and her colleagues tested whether rats can detect social signals form robotic rats.They housed eight adult rats with two types of robotic rat-one social and one asocial一for 5 our days.The robots rats were quite minimalist,resembling a chunkier version of a computer mouse with wheels-to move around and colorful markings.During the experiment,the social robot rat followed the living rats around,played with the same toys,and opened caged doors to let trapped rats escape.Meanwhile,the asocial robot simply moved forwards and backwards and side to side Next,the researchers trapped the robots in cages and gave the rats the opportunity to release them by pressing a lever.Across 18 trials each,the living rats were 52 percent more likely on average to set the social robot free than the asocial one.This suggests that the rats perceived the social robot as a genuine social being.They may have bonded more with the social robot because it displayed behaviours like communal exploring and playing.This could lead to the rats better remembering having freed it earlier,and wanting the robot to return the favour when they get trapped,says Quinn.The readiness of the rats to befriend the social robot was surprising given its minimal design.The robot was the same size as a regular rat but resembled a simple plastic box on wheels.“We'd assumed we'd have to give it a moving head and tail,facial features,and put a scene on it to make it smell like a real rat,but that wasn’t necessary,”says Janet Wiles at the University of Queensland in Australia,who helped with the research.The finding shows how sensitive rats are to social cues,even when they come from basic robots.Similarly,children tend to treat robots as if they are fellow beings,even when they display only simple social signals.“We humans seem to be fascinated by robots,and it turns out other animals are too,”says Wiles.James Wiles notes that rats________

A.can remember other rat's facial features
B.differentiate smells better than sizes
C.respond more to cations than to looks
D.can be scared by a plastic box on wheels

社会主义精神文明在社会主义现代化建设中具有重要战略地位和作用，表现在
A.为经济建设提供精神动力 B.为现代化建设提供智力支持
C.为现代化建设创造良好的社会环境 D.为现代化建设的正确发展方向提供思想保证
E.它是构成综合国力的重要方面

在检测一种很严重的疾病时,一个错误的阳性结果指出人们患了这种病而实际上他们没有,一个错误的阴性结果指出人们没有患这种病而实际上他们患有。因此,为更准确地检测这种疾病,医生应采用产生错误的阳性结果比例最低的实验室测试手段。以下哪一项如果是正确的,为以上建议提供了最有力的支持？

A.这种病的病人接受的治疗没有损害性的副作用。
B.产生错误的阳性结果比例最低的实验室测试手段与用来检测这种病的其他实验室手段一样会产生轻微的副作用。
C.在治疗这种病人时,尽可能早地开始治疗非常重要,因为即使一周的耽误也会导致病人失去生命。
D.无法得出确定的测试结果的比例对所有用来检测这种病的实验室测试手段都是一样的。
E.所有的检测这种病的实验室测试手段都有相同的出现错误的阴性结果的比例。