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
15
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] 【B10】
选项
答案
The scientists designed the cell as a balloon inside a balloon. They loaded the outer part with a drug that caused the- blood vessels to fall in on themselves.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2884202.html
相关试题推荐
【B1】[br]【B8】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B5】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B3】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B2】[originaltext]RecentlyagroupofSwedishresearchscientists
[originaltext]Scientistsaregearingupforoneofthemostambitiousinter
[originaltext]Scientistsaregearingupforoneofthemostambitiousinter
【B1】[br]【B9】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B8】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B5】[originaltext]RecentlyagroupofSwedishresearchscientists
【B1】[br]【B4】[originaltext]RecentlyagroupofSwedishresearchscientists
随机试题
Inabout45years,temperaturesonEarthwillbehotterthanatanytimedur
[originaltext]Americanschoolsprovidedaidtoalmosthalfofforeigngradu
下列选项中,属于会议在休会之后继续的术语是()。A.复会 B.继会 C.持
按照网络分级设计模型,通常把网络设计分为3层,即核心层、汇聚层和接入层。以下叙述
Thechangeinthatvillagewasmiraculou
核酸中核苷酸间的连接方式是A.糖肽键B.3′,5′磷酸二酯键C.2′,3′磷酸二
2020年12月,我国网民规模达9.89亿,较2020年3月增长8540万。其中
关于公司合并,下列说法中不正确的是()。A:一个公司吸收其他公司为吸收合并,被
2×21年12月10日,甲民间非营利组织按照与新发公司签订的一份捐赠协议,向新发
某新建办公楼工程,总建筑面积68000㎡,地下2层,地上30层,人工挖孔桩基础,
最新回复
(
0
)