题目

计算: (1) ; (2) . 答案:解:原式=[1+1−(0.008−0.008)2]×116−3÷17 =2×116−3×7 =18−21 =−1678 解:原式=|8−2|−33×3÷(−2)−9 =6+92−9 =32Computer science__________(teach)now almost in all universities and institutes.
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