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  3. " Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can

" Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can

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问题     " Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can see people’s faces." The 65-year-old is one of six people in the world to receive gene therapy for a【C1】________type of inherited eye disease【C2】________choroideremia (an eye disease). The first published【C3】________of the trial, released today, suggest that【C4】________people’s genes can stop the disease from causing blindness—and【C5】________sight in those whose vision has become【C6】________.
    Choroideremia is caused by【C7】________in the CHM gene. In those who have the disease, a【C8】________of REP-1 means that cells in the eyes stop working and slowly begin to【C9】________causing blindness. Enter gene therapy, which uses a virus to insert a【C10】________copy of a gene into cells with a gene defect and could【C11】________be used to treat many genetic conditions. Robert MacLaren of the University of Oxford and his colleagues decided to see if it could【C12】________choroideremia. Starting two years ago with Wyatt, they【C13】________a virus carrying a corrective copy of the CHM gene into the eyes of people with choroideremia. Today the team【C14】________that of the six people who received the treatment six months【C15】________or longer, all have described【C16】________in their vision. Still, the long-lasting effects of the treatment remain【C17】________Wyatt had the treatment first, so can【C18】________that the benefits seem to last two years,【C19】________he’s just one case. The treatment also can’t replace cells that have been【C20】________destroyed.  
【C12】
选项 A、influence
B、suppress
C、revise
D、correct
答案D
解析 空格前的it指代上一句的gene therapy“基因疗法”，而基因疗法是用来治疗choroideremia“无脉络膜”的。意思与“治疗”最接近的只有D项correct，表示“改正，改善”。
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