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首先我觉得to make 比for making好,to make表目的,for making表用途,但是不太影响 第二,A中to make ever more precise measurements that scientists hope will enable them to,that引导的不是定语从句,而是同位语从句,但是 that scientists hope will enable them to做measurements的同位语很ridiculous 所以还是C好,they指代很清楚,就近指代scientists
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