單項選擇題

【A1/A2型題】用堿性苦味酸試劑測定血肌酐應(yīng)準確地讀取反應(yīng)后哪兩個時間點的吸光度()

A.10s和20s
B.20s和100s
C.20s和80s
D.60s和100s
E.60s和120s

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