题目

如果,那么________. 答案:【答案】-1【解析】根据非负数的性质列式求出a、b的值,然后代入代数式进行计算即可得解.由题意得:a+2=0,1﹣b=0,解得:a=﹣2,b=1,所以,(a+b)2015=(﹣2+1)2015=﹣1.故答案为:﹣1.Hi, Donald, your new school bag is nicer than ________.A. hers B. her C. he D. their
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