题目内容
（请给出正确答案）
A.them
B.that
C.whom
D.what
参考答案
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
网友提供的答案
更多“The group of thegedre close compnions,nd mny of ______ hve known ech other for decdes.tThe group of …”相关的问题
It's not entirely clear why medicine has been so slow to build on Anderson' s early success. The National Institutes of Health budget office estimates it will spend $ 432 million on gene-therapy research in 2005, and there is no shortage of promising leads. The therapeutic genes are usually delivered through viruses that don' t cause human disease. "The virus is sort of like a Trojan horse," says Ronald Crystal of New York Presbyterian/Weill Cornell Medical College. "The cargo is the gene. "
At the University of Pennsylvania's Abramson Cancer Center, immunologist Carl June recently treated HIV pa tients with a gene intended to help their cells resist the infection. At Cornell University, researchers are pursuing gene-based therapies for Parkinson's disease and a rare hereditary disorder that destroys children' s brain cells. At Stanford University and the Children' s Hospital of Philadelphia, researchers are trying to figure out how to help patients with hemophilia who today must inject themselves with expensive clotting drugs for life. Animal experiments have shown great promise.
But somehow, things get lost in the translation from laboratory to patient. In human trials of the hemophilia treatment, patients show a response at first, but it fades over time. And the field has still not recovered from the setback it suffered in 1999, when Jesse Gelsinger, an 18-year-old with a rare metabolic disorder, died after receiving an experimental gene therapy at the University of Pennsylvania. Some experts worry that the field will be tarnished further if the next people to benefit are not patients but athletes seeking an edge. This summer, researchers at the Salk Institute in San Diego said they had created a "marathon mouse" by implanting a gene that enhances running ability; already, officials at the World Anti-Doping Agency are preparing to test athletes for signs of "gene doping". But the principle is the same, whether you're trying to help a healthy runner run faster or allow a muscular-dystro-phy patient to walk. "Everybody recognizes that gene therapy is a very good idea," says Crystal. "And eventually it's going to work. "
The case of Ashanthi Desilva is mentioned in the text to
A．show the promise of gene-therapy
B．give an example of modem treatment for fatal diseases
C．introduce the achievement of Anderson and his team
D．explain how gene-based treatment works
A、It is available nearby.
B、It is cost-effective.
C、There are a lot of wood at the time.
D、It is the best building material.
Request: Make model and detail drawing of the given part in following views. Notice: 1. Make sure your detail drawing with proper representation and fully dimensioned and labeled. 2. Make a new folder with the name “****name”and create all you files under this folder with same name. In “****name”, **** is the number of your ID and name is your name. 3. There should be four files under the folder, which respectively is ipt, idw, pdf of idw,and ipj file. 4. Please save you files manually very often although the program should save it automatically. 5. Make sure your personal information (id, name, class etc.) shown in title block. 6. Chose proper sheet size and scale for detailed drawing. 7. Estimate the missing dimensions by scale or commonsense of a mechanical engineer. 9. Zip your folder and upload it to Mooc system. 10. Pay attention to the unit of size in the given view.
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
