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  3. Not until the advent of histochemistry could the anatomist see through the microscope which cells carry specific enzymes or gaug

Not until the advent of histochemistry could the anatomist see through the microscope which cells carry specific enzymes or gaug

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问题 Not until the advent of histochemistry could the anatomist see through the microscope which cells carry specific enzymes or gauge how active these enzymes are in different cells under various conditions.
选项 A、discern
B、grasp
C、measure
D、estimate
答案C
解析 本题中，gauge的意思是“测量”。C项的measure“测量”符合题意，如：Mother measured me to see what size ofdress I should have．(母亲给我量尺寸，好知道我该穿多大号的衣服。)其他三项discern“目睹”， grasp“抓住”，estimate“估计”都不正确。
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