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
Read the following text and match each of the numbered items in the left column to its corresponding information in the right co
Read the following text and match each of the numbered items in the left column to its corresponding information in the right co
admin
2022-12-09
84
问题
Read the following text and match each of the numbered items in the left column to its corresponding information in the right column. There are two extra choices in the right column. Mark your answers on the ANSWER SHEET.
In a state-of-the-art clean room, a scientist clad in a full-body containment suit, a hair net and blue gloves is preparing some printing cartridges—filled not with ink but a viscous milky liquid. Next to her sits a computer connected to a machine that resembles a large ice-cream dispenser, except that each of its two nozzles is made of a syringe with a long needle. Once the scientist clicks on the "run program" button, the needles squeeze not a vanilla or chocolate flavoured treat, but a paste of living cells.
Forty minutes later, the task is finished. Depending on the choice of bioink and printing pattern, the result could have been any number of three-dimensional biological structures. In this case, it is a strand of living lung tissue about 4cm in length and containing about 50m cells.
Since its start in 2007, researchers at San Diego-based Organovo have experimented with printing a wide variety of tissues, including bits of lung, kidney and heart muscle. Now the world’s first publicly traded 3D bioprinting company is gearing up for production. In January samples of its first product—slivers of human liver tissue—were delivered to an outside laboratory for testing. These are printed in sets of 24 and take about 30 minutes to produce, says Keith Murphy, the firm’s chief executive. Later this year Organovo aims to begin commercial sales.
Each set consists of a plate with 24 wells containing a piece of liver tissue 3mm square and 0.5mm deep. Although prices have not been fixed, a set of tissues like this can sell for $2,000 or more for laboratory use. It might seem expensive, but it could save pharmaceutical companies a lot of money. This is because Organovo’s research indicates that the slivers of liver respond to drugs in many ways like a fully grown human liver would. If this is confirmed by outside testing, researchers could use the printed tissues to test the toxicity of new drugs before deciding whether to embark on expensive clinical trials with patients.
The invention of 3D printing in the 1980s provided a technology now used to manufacture everything from aircraft parts to prosthetic limbs. But the promise of 3D bioprinting is even larger: to create human tissues—layer by layer—for research, drug development and testing, and ultimately as replacement organs, such as a kidney or pancreas, for patients desperately in need of a transplant. Bioprinted organs could be made from patients’ own cells and thus would not be rejected by their immune systems. They could also be manufactured on demand.
At present only a handful of companies are trying to commercialize the production of bioprinted tissues. But Thomas Boland, an early pioneer in the field, says that plenty of others are interested and estimates that about 80 teams at research institutions around the world are now trying to print small pieces of tissues as varied as skin, cartilage, blood vessels, liver, lung and heart. "It’s a wonderful technology to build three-dimensional biological structures," says Gabor Forgacs, who co-founded Organovo in 2007 and was the company’s scientific mastermind.
[A] would be made on the need of the market.
[B] said that bioprinting was a wonderful technology.
[C] could be made from the cells of patients’ relatives.
[D] claimed that it took a short time to print the tissues.
[E] showed that the printed tissues were similar to real tissues.
[F] reckoned that bioprinting appealed to a majority of companies.
[G] conducted a large number of experimental studies of bioprinting.
Keith Murphy
选项
答案
D
解析
根据Keith Murphy定位至第三段。第四句说These are printed in sets of 24 and take about 30 minutes to produce, says Keith Murphy, the firm’s chief executive (这些肝脏组织以每套24个单位打印出来,需要耗时约30分钟来制造,公司首席执行官基思.墨菲说道)。与之接近的是D项。其中,claimed对应says;took a short time对应take about 30 minutes;to print对应to produce。故本题答案为D项。
转载请注明原文地址:https://kaotiyun.com/show/eQMD777K
0
考研英语二
相关试题推荐
[A]Workforyourdream[B]Apennysavedisapennyearned[C]Don’tcompareyourselftoothers[D]Betruetoyou
Americahaslongbeenresistanttoadequatepovertypoliciesbecauseofitsstrongstrainofthinkingthatthepoorareresponsi
Everyonewantstobeauthentic.Youwanttobetruetoyourself,notaslavishfollowerofsocialexpectations.Youwantto"liv
EnrollmentinLosAngelespublicschoolsisexpectedtoplungebynearly30%overthenextdecade,leadingtotoughchoicesahea
Readthefollowingexcerptfromanarticleandwriteanessay.Inyouessay,youshouldexplainwhetherortowhatextentyouag
Inthenewsprintmarket,priceshaverisenbyover50%inamatterofmonths.Thecostofpaperthatfeedsintopressesaroundt
Inthenewsprintmarket,priceshaverisenbyover50%inamatterofmonths.Thecostofpaperthatfeedsintopressesaroundt
Peoplehavebeenholdingheateddiscussionsrecentlyaboutwomen’sexperienceintheworkplace.LastmonthSherylSandberg,chie
Peoplehavebeenholdingheateddiscussionsrecentlyaboutwomen’sexperienceintheworkplace.LastmonthSherylSandberg,chie
WhydoweneedtheEnglishmajor?The【C1】________isineverymouth—or,atleast,isdiscussedextensivelyincolumnsand【C2】____
随机试题
关于高钠血症的治疗,正确的是
以下不是接入控制的功能的是()
某投资者通过协议转让的方式持有上市公司12%的股份,且成为第一大股东,其编制的权益变动报告书应披露的内容包括()。[2015年6月真题]Ⅰ.持有12%股份事实发生之日前6个月内通过证券交易所的证券交易买卖该公司股票的简要情况Ⅱ.取得
以下()策略不是按营销渠道模式分类。
诺奇公司是生产企业,兼营房地产开发业务,其2018年财务报表于2019年4月30日报出。2019年3月,会计师事务所对诺奇公司财务报表进行审计时,现场审计人员关注到其2018年以下交易或事项的会计处理:(1)自2018年1月1日起,诺奇公司将某生产用机
货位分配方式的前期准备工作有()。
下图示意某跨国公司的制造企业和研发中心在中国的分布。读图,完成下列问题。该公司研发中心选择考虑的首要因素是()
小男孩宋华6岁的时候父亲去世了,15岁的时候母亲瘫痪了,但他微笑面对生活。终于考上大学,并带着母亲上大学,他的事迹被媒体报道之后引起了巨大反响。对这件事你有什么感想?
A.wecanmakeexceptionsforChinesecompanies.B.Iwillintroduceyouthedetails.C.WheredoIsendtheregistrationforma
[*]
最新回复
(
0
)