题目内容

已知某药对小鼠的最大耐受量为20 mg/kg(20 g小鼠用0.4mg),请问家兔的最大耐受量是多少?

A. 7.4mg/kg
B. 74mg/kg
C. 5.4mg/kg
D. 54mg/kg
E. 6.5mg/kg

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