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Many people are disturbed by the genetic diversity of cancers — an inevitable
Many people are disturbed by the genetic diversity of cancers — an inevitable
游客
2025-03-26
22
管理
问题
Many people are disturbed by the genetic diversity of cancers — an inevitable consequence of random evolution. Cancer therapies【C1】______be applied fairly randomly or carelessly, but nowadays many believe that effective therapies need to be【C2】______and tailored to genetic faults in each individual’s cancer.
However, a personalized treatment disregards the most fundamental reason why it is difficult to cure cancers【C3】______: cancer cells adapt and evolve【C4】______treatment. Even drugs that are initially effective often have a【C5】______diminishing effect, as the biological systems blocked by the treatment spontaneously compensate【C6】______re-routing the cancer cells’ internal wiring,【C7】______the cancer’s ability to spread. To use an【C8】______, traffic hot spots in towns can cause major traffic jams, but smart drivers will quickly find other short cuts. Then, in the absence of "short cuts", evolution【C9】______: naturally arising mutant cancer cells that are【C10】______the targeted drug rapidly outgrow their disabled siblings and cancer comes back. [br] 【C6】
选项
A、for
B、between
C、during
D、by
答案
D
解析
该选项可能有些难,容易上当。本句中的re-routing the cancer cells’internal wiring的含义是“重新设计癌细胞的内部线路”,是人体某些生物系统对抗药物治疗的方式。compensate(补偿,弥补)确实接介词for,但compensate for rerouting the cancer cells’internal wiring的意义是“对重新设计癌细胞的内部线路做出赔偿”,这听起来有“悔罪”的意图,应该对健康有益,显然不符合逻辑。介词during几乎不接doing,而by doing…的含义是“通过做……”,更符合逻辑。
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