资料语言:简体中文
资料类型:考研 - 考研英语
授权方式:免费版
资料大小:447 KB
推荐星级:
更新时间:03-02
相关Tags:考研英语 ,考研英语真题,考研英语词汇,考研英语怎么复习,考研英语真题下载
下载统计:2575次
》简介:
考研 - 考研英语[
全国硕士研究生入学考试英语试题及参考答案]由[乐教网]提供下载交流学习,版权归原作者所有,大小为447 KB,
ed tool. humans are often thought to be insensitive smellers compared with animals, 1 this is largely because, 2 animals, we stand upright. this means that our noses are 3 to perceiving those smells which float through the air, 4 the majority of smells which stick to surfaces. in fact 5, we are extremely sensitive to smells, 6 we do not generally realize it. our noses are capable of 7 human smells even when these are 8 to far below one part in one million.
strangely, some people find that they can smell one type of flower but not another, 9 others are sensitive to the smells of both flowers. this may be because some people do not have the genes necessary to generate 10 smell receptors in the nose. these receptors are the cells which sense smells and send 11 to the brain. however, it has 全国硕士研究生入学考试英语试题及参考答案