The patient agreed and the experiment was carried out in the summer of 2017. It was the first time CRISPR-Cas9 was used on a HIV

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问题 The patient agreed and the experiment was carried out in the summer of 2017. It was the first time CRISPR-Cas9 was used on a HIV patient. In early 2019, a full 19 months after the treatment was administered, "the acute lymphoblastic leukemia was in complete remission and donor cells carrying the ablated CCR5 persisted," the scientists said in the paper.

选项 A、pursued
B、deployed
C、refrained
D、managed

答案A

解析 本题考查动词辨析。根据experiment was carried out和CRISPR-Cas9 was used可知,after treatment was administered表示“在进行治疗之后”的含义,pursue意为“执行,贯彻”,符合语义,故答案是A项。deploy意为“部署,有效地利用,调动”;refrain意为“克制,节制”;manage意为“勉力完成,能解决(问题)”。
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