计算ab-(2ab-3a^2b)的结果是?A.3a^2b+3abB.-3a^2b-abC.3a^2b-abD.-3a^2b+3ab

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计算ab-(2ab-3a^2b)的结果是?A.3a^2b+3abB.-3a^2b-abC.3a^2b-abD.-3a^2b+3ab
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计算ab-(2ab-3a^2b)的结果是?A.3a^2b+3abB.-3a^2b-abC.3a^2b-abD.-3a^2b+3ab
计算ab-(2ab-3a^2b)的结果是?
A.3a^2b+3ab
B.-3a^2b-ab
C.3a^2b-ab
D.-3a^2b+3ab

计算ab-(2ab-3a^2b)的结果是?A.3a^2b+3abB.-3a^2b-abC.3a^2b-abD.-3a^2b+3ab
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