前言： 目的：探讨样品体积分数（SVF）在高酶活力血清测定中的影响。
Objective: To investigate the effect of SVF on measurement of serum with high enzyme ability.
微积分学中有关积分与它在微分方程和测定面积，体积等的应用的部分。
What fraction of the area of ABC is the area of the shaded part?
微积分学中有关积分与它在微分方程和测定面积，体积等的应用的部分。
What fraction of the area of ABC is the area of the shaded part?
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