首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a singl
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a singl
admin
2014-04-20
74
问题
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a single memory. Working with rats, LeDoux’s team first【B1】______the animals to fear both a beep and a siren【B2】______giving them an electric shock every time either of the tones sounded. Then LeDoux gave half the rats the drug U0126, which is known to【B3】______with memory storage, and replayed the beep【B4】______electric shocks.
A day later, when LeDoux【B5】______back both tones to the rats, the animals that hadn’t been given the drug were still fearful of both sounds.【B6】______the rats that had been given the memory-blocking drug weren’t【B7】______of the beep, which they had last heard while【B8】______the influence of U0126.
【B9】______how U0126 exerts its amnesiac effect is【B10】______, but it may block the synthesis of proteins that help strengthen【B11】______between neurons and establish memories. The opportunity for erasure【B12】______during the act of retrieving a memory, because that’s【B13】______the memory is being updated and【B14】______again for long-term storage. " Only those memories that are activated are【B15】______," LeDoux says.
Drugs like U0126 may someday【B16】______sufferers of traumatic memories. A small group of human studies have been done on a drug called propranolol, which blocks the action of stress neurotransmitters that help【B17】______memories in the brain, but LeDoux’s work shows the【B18】______for greater precision. " You might be able to【B19】______the traumatic impact of memories in people," says LeDoux. " The good news is you wouldn’t be【B20】______off their memory bank. "
【B10】
选项
A、unknown
B、suspicious
C、significant
D、determinate
答案
A
解析
形容词辨析题。根据上一空的解题分析已经可推知此处作者所要表达的意思是研究者对药物究竟如何发挥作用并不确知,因此[A]unknown“未知的”应为正确答案。[D]determinate“确定的”与上述分析恰恰相反,易排除。文章并没有在此处讨论这种药物的重要性或意义,故[C]significant“重要的”不符合本段主旨,也应排除。[B]suspicious表示“可疑的”,但文章没有针对任何说法提出疑点,故[B]也不是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/7PO4777K
0
考研英语一
相关试题推荐
Writeanessayof160200wordsbasedonthefollowingdrawing.Inyouressay,youshould1)describethedrawingbriefly,2)
Theenergycontainedinrockwithintheearth’scrustrepresentsanearlyunlimitedenergysource,butuntilrecentlycommercial
Theenergycontainedinrockwithintheearth’scrustrepresentsanearlyunlimitedenergysource,butuntilrecentlycommercial
Guthrie’scontiguityprincipleofferspracticalsuggestionsforhowtobreakhabits.Oneapplicationofthethresholdmethod
ThefirsttechnologicalrevolutioninmodernbiologystartedwhenJamesWatsonandFrancisCrickdescribedthestructureofDNA
Whethertoteachyoungchildrenasecondlanguageisdisputedamongteachers,researchersandpushyparents.Ontheonehand,ac
Whethertoteachyoungchildrenasecondlanguageisdisputedamongteachers,researchersandpushyparents.Ontheonehand,ac
GeneralWesleyClarkrecentlydiscoveredaholeinhispersonalsecurity—hiscellphone.Aresourcefulblogger,hopingtocall
Supposeyourmotherhascometoseeyouandtonightyouwillsleepintheroomshehasbookedinahotelnearyouruniversity.W
FlorenceNightingaleismostrememberedasapioneerofnursingandareformerofhospitalsanitationmethods.Formostofhern
随机试题
客户组合策略中不包括()
下列不符合毒血症的描述是
A.复方大承气汤B.小承气汤C.增液承气汤D.甘遂通结汤E.麻子仁丸治疗肠梗阻水结湿阻型方选
同一生产厂家、同品种、同等级、同批号连续进场的水泥,袋装水泥不超过300t为一批,散装水泥不超过500t为一批,每批抽样不少于一次。()
建设工程项目的技术风险不包括()。
该批货物的提单号为“7865435”。( )该批货物没有毛重。( )
根据企业所得税法进行纳税审核时,在审核主营业务收入时,税务师提出的观点正确的有()。
()
习近平在十三届全国人大一次会议重庆代表团参加审议时指出:“要坚持法治、反对人治,对宪法法律始终保持敬畏之心,带头在宪法法律范围内活动,严格依照法定权限、规则、程序行使权力、履行职责,做到心中高悬法纪明镜、手中紧握法纪戒尺,知晓为官做事尺度。”法治思维与人治
A、Theycangetexercise.B、It’sboring.C、Theycangobybike.D、It’sinteresting.A信息明示题。男士说wewillgetplentyofexercise,即可以得
最新回复
(
0
)