首页
登录
职称英语
A. limited B. distinguish C. unlike D. particular E. trigger
A. limited B. distinguish C. unlike D. particular E. trigger
游客
2023-10-29
14
管理
问题
A. limited B. distinguish C. unlike D. particular E. trigger
F. inefficient G. create H. emergency I. incompetent J. detecting
K. aware L. messages M. unusual N. surfaces O. confined
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is largely because, 【C1】______ animals, we stand upright. This means that our noses are 【C2】______ to perceiving those smells which float through the air, missing the majority of smells which stick to 【C3】______. In fact, though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of 【C4】______ human smells even when these are diluted to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, whereas others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate 【C5】______ smell receptors in the nose. These receptors are the cells which sense smells and send 【C6】______ to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when exposed to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it 【C7】______ to keep all smell receptors working all the time but can 【C8】______ new receptors if necessary. This may also explain why we are not usually sensitive to our own smells-we simply do not need to be. We are not 【C9】______ of the usual smell of our own house, but we notice new smells when we visit someone else’s. The brain finds it best to keep smell receptors available for unfamiliar and 【C10】______ signals such as the smell of smoke, which might indicate the danger of fire. [br] 【C10】
选项
答案
H
解析
此处需要填入与unfamiliar“不熟悉的;陌生的”并列的修饰signals的词。由后面的indicate the danger of fire可推测,此处填入的是与预示危险有关的词。emergency“紧急情况;不测事件”符合语义,此处emergency signals表示“危急信号”。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3140935.html
相关试题推荐
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
Butwedoneedalittlefreedomfromourleashes______.A、inparticularB、atall
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
随机试题
[originaltext]WaltWhitmanisoftencalledthepoetofAmericandemocracy.
[originaltext]Asisknowntoall,scientistsandphilosophershadstudiedt
AdvancedLearnersinChina’sTopUniversitiesAndrewChi-
基准收益率与财务净现值(FNPV)的关系表现为()。A.当基准收益率增大,F
关于虱的吸血习性,下列说法正确的是A.仅雌虫吸血 B.雌虫及若虫吸血,雄虫不吸
有明显利胆作用的是A.麻黄B.甘草C.五加皮D.苍术E.茵陈
温病气分证的临床表现可见( )。A.但热不寒 B.斑疹隐隐 C.汗出尿黄
A.双解磷 B.亚硝酸钠 C.盐酸烯丙吗啡 D.谷胱甘肽 E.乙酰胺用于
中度贫血,Hb为()A.90~120g/L B.60~90g/L C.小于
金黄色葡萄球菌感染青霉素高度过敏时使用A.红霉素 B.氯霉素 C.阿奇霉素
最新回复
(
0
)