2. 职称英语
  3. [img]2011q3/ct_egmatqm_egmatqchoose_0355_20112[/img]C722 is the same thing as (8

[img]2011q3/ct_egmatqm_egmatqchoose_0355_20112[/img]C722 is the same thing as (8

游客2025-02-27  8
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答案 C
解析 722 is the same thing as (8×9)2, which is the same as (22×32)2, which is the same as (26)(34); consequently, everything factors out of the fraction except 52, which equals 25.
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