(+2.5)+(-3.9) 2.56-(13/3-2.44) I-12I-(-3)+I-4I-(I-7-2I-8)
问题描述:
(+2.5)+(-3.9) 2.56-(13/3-2.44) I-12I-(-3)+I-4I-(I-7-2I-8)
答
(+2.5)+(-3.9) 2.56-(13/3-2.44) I-12I-(-3)+I-4I-(I-7-2I-8)