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
外语
Scientists have developed a new cancer drug. So far, they have tested it only on 【B1】______ animals. The drug is designed to 【B2
Scientists have developed a new cancer drug. So far, they have tested it only on 【B1】______ animals. The drug is designed to 【B2
admin
2010-01-10
84
问题
Scientists have developed a new cancer drug. So far, they have tested it only on 【B1】______ animals. The drug is designed to 【B2】______ and kill cancer cells but not healthy cells.
First, the drug enters the cancer and destroys the supply of blood. Then it releases 【B3】______ to destroy the cancer cells.
Researchers at the Massachusetts Institute of Technology in Cambridge carried out the study. The 【B4】______ appeared in Nature 【B5】______ . A school news release called the drug an "anti-cancer smart bomb."
Ram Sasisekharan is a professor at M.I.T. He says his team had to 【B6】______ three problems. They had to find a way to destroy the blood vessels, then to 【B7】______ the growth of new ones. But they also needed the blood vessels to supply chemicals to destroy the cancer.
So, the researchers designed a two-part "nanocell". The cell is 【B8】______ in nanometers, or one thousand millionth of a meter. 【B9】______ .
The scientists say it was small enough to pass through the blood vessels of the cancer, but it was too big to enter normal blood vessels. The surface of the nanocells also helped them to avoid natural defenses.
【B10】______ That cut off the blood supply and trapped the nanocell inside the cancer. Then, the nanocell slowly released chemotherapy drugs to kill the cancer ceils.
【B11】______ .
【B6】
选项
答案
solve
解析
转载请注明原文地址:https://kaotiyun.com/show/UTt7777K
0
大学英语四级
相关试题推荐
Thereasonwhystudyingthenatureofhumanbeingsispopularisthat______.Scientistsareresponsibleforpeoplewhoholdha
Formostpeople,theword"fashion"means"clothes".Whenpeopleaskthequestion,"What’sinfashioninItaly?"theynormallym
A、External.B、Subjective.C、Interpersonal.D、Imperative.BWhatistheessentialcharacteristicofthepsychologicalfunctions?
A、Governmentandtaxes.B、Workandtaxes.C、Freedomandtaxes.D、Deathandtaxes.DAccordingtothepassage,whatarethetwoth
Whateffectdoesexcessivepositiveionizationhaveonsomepeople?Byobservingthebehaviorofanimals,scientistsmaybeabl
A、Itisimportanttohavetherightfoodforchildren.B、ItisagoodideatohavetheTVonduringdinner.C、Parentsshouldtal
Nodirectrelationshiphasbeenprovenbetweenhighcholesterollevelsandheartattacks.Oldpeopleshouldn’tbothertochange
A、Peoplehavedifferentpersonalities.B、Peoplecanlearntorecognizefaces.C、Peopledifferfromeachotherinfacialfeatures
Fearisanemotiondevelopedfromlifeexperienceratherthananinbornnatureofhumans.Goodparentsdon’tshowanyfearsand
A、Tocatchthebirds.B、Tocatchotheranimals.C、Tolookforshadeintheheatoftheday.D、Tolookforakillmadebyanother
随机试题
某商业银行违反审慎经营规则.造成资本和资产状况恶化,严重危及稳健运行,损害存款人和其他客户合法权益。对此,银行业监督管理机构对该银行依法可采取下列哪些措施?
简述大型企业应树立的战略思想。
国家
A.B.1.5λminC.2.5λminD.0.08~0.6AE.3.5λmin医用X线波长范围是
按照土地权利的不同,土地权属来源可分为()。
电气线路的保护措施主要有()。
根据《企业会计准则》,企业提供会计信息的质量要求有( )。
“用才”是文化创意产业发展的重点。培养人才的目的是使用。应紧密围绕“使用”来优化文化创意产业人才结构,通过文化创意产业项目运作来锻炼和使用人才。对文化创意企业来说,应营造多元、平等、鼓励、创新的企业文化,为人才充分发挥才能提供良好平台。多元、宽松的企业文化
根据所给资料,回答问题。2016年末,全国内河航道通航里程12.71万公里。等级航道6.64万公里,其中三级及以上航道1.21万公里,占总里程的9.5%,比上年提高0.4个百分点。各等级内河航道通航里程分别为:一级航道1342公里,二级航道3681公里,
HowsciencegoeswrongScientificresearchhaschangedtheworld.Nowitneedstochangeitself.A)Asimpleideaunderli
最新回复
(
0
)