题目内容
计算-(-3a2b3)4的结果是
A.81a8b12
B.12a6b7
C.-12a6b7
D.-81a8b12
计算﹣(﹣3a2b3)4的结果是( ).
A.81 a8b12 B.12 a6b7 C. ﹣12a6b7 D. ﹣81a8b12