求快乐寒假答案！

找你们班语文第一。

p1

9:(1)-6，-4 (2)18，-72 (3)-9+2-7-5+4 (4)万分，5;十万，5 (5)7.6乘10的9次方 (6)0 (7~10)CDDD (11) 6;2;72;6

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