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
77
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] 【B7】
选项
答案
prevent
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2884199.html
相关试题推荐
Scientistshavereasontothinkthatamancanputupwithfarmoreradiationth
Whatisthescientists’newdiscovery?[br]WhatissaidabouttherainfallinA
Whatisthescientists’newdiscovery?[br]Whatdoestheauthormeanby"You’re
Scientistshavedevisedawaytodetermineroughlywhereapersonhaslived
[originaltext]Nooneknowsexactlywhywesleep.Butscientistshavelearneda
Howexactly,doessciencework?Howdoscientistsgoaboutdoingscience?Ordina
【B1】[br]【B11】[originaltext]Scientistshavedevelopedanewcancerdrug.So
【B1】[br]【B8】[originaltext]Scientistshavedevelopedanewcancerdrug.So
【B1】[br]【B7】[originaltext]Scientistshavedevelopedanewcancerdrug.So
【B1】[br]【B6】[originaltext]Scientistshavedevelopedanewcancerdrug.So
随机试题
I’mamazedthattheyoungactressmarriedthephotographersosoon,forshe_____
女,42岁。近几天反复头痛、呕吐,入院后检查确诊为颅内压增高。护士告知颅内压的正
蜡封法测土的密度适用于易破裂和形态不规则的坚硬土。()
患者女性,42岁,反复发作右上腹疼痛2年。1天前进食油腻食物后出现右上腹持续性疼
肠外营养的并发症有下列哪一项A.静脉导管相关并发症 B.代谢性并发症 C.脏
对蛔虫、绦虫、蛲虫、鞭虫和血吸虫都有效的药物是A.使君子B.苦楝皮C.川楝子D.
与活动性狼疮患者有关的自身抗体是()。A.抗组蛋白抗体 B.抗RNP抗体
某建设工程项目,承包商在施工过程中发生如下费用:完成业主要求的合同外工程人工费5
按收入法核算工业增加值,以下说法正确的是()。A:工业增加值=固定资产折旧+劳动
过期产()。A.妊娠28周以前分娩 B.妊娠满28周不满37周分娩 C.妊娠
最新回复
(
0
)