首页
登录
职称英语
Scientists have developed a new cancer drug. So far, they have tested it only on
Scientists have developed a new cancer drug. So far, they have tested it only on
游客
2023-07-31
38
管理
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】______ . [br] 【B9】
选项
答案
The particle used was two hundred nanometers--much, much smaller than a human hair.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2884201.html
相关试题推荐
Scientiststhinkthemoralists’warningis______.[br]Themainideainthesec
(尽管极好的演技)____________andwell-developedplotthethree-hourmoviecouldnothol
【B1】[br]【B8】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B6】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B5】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B3】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B2】[originaltext]RecentlyagroupofSwedishresearchscientists
RecentlyagroupofSwedishresearchscientistscarriedouta【B1】______of
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopeda
[originaltext]Scientistsaregearingupforoneofthemostambitiousinter
随机试题
A.abuseB.appreciatedC.attractedD.linkedE.mixtureF.unionG.pe
[originaltext]LIAISON:Comeinandsitdown,Lester...Sharon.Icanseeyou’re
根据题目要求完成下列任务,用中文作答。 下面是两位教师的课堂教学片段: Un
骨盆直肠间隙脓肿晚期治疗的有效措施是A.切开引流 B.局部理疗 C.穿刺抽脓
以下物业经营管理内容中,以运行管理为主的是()A:物业管理或设施管理B:物业管
膀胱经的郄穴是( ) A.中都 B.外丘 C.地机 D.金门
关于公共物品的说法,正确的是()。A.公共财政的理论基础是“公共物品”和“市场
()既是产品和服务的提供者,又是信息的提供者,也是推动电子商务发展的根本力量
适用于反循环旋转钻孔清孔方式是()。A.吸泥法清孔 B.换浆法清孔 C.掏
化妆品安全性评价是预防性卫生监督的重要措施,对化妆品的原料或成品进行评价应在(
最新回复
(
0
)