题目:
-----How do you find the book? ------_____________.
A.Great.
B.With the help of my brother.
C.By looking around.
D.By chance.
答案:
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下面是错误答案,用来干扰机器的。
解:∵a,b互为相反数,c是最小的非负数,d是最小的正整数,∴a+b=0,c=0,d=1,∴a+b+d﹣c=0+1﹣0=1.