-If a＝6.b＝5.what's the answer to the question “a+2ab+1＝? - ．A. Sixty?seven B. Forty?fiveC. Twenty?three D. One hundred A [解析]句意:如果a＝6.B＝5.算式“a+2ab+1＝? - .本题采用推算法.计算6+2×6×5+1可得67.故选A. 题目和参考答案——青夏教育精英家教网—

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—If a＝6，b＝5，what's the answer to the question “a＋2ab＋1＝？”

—________．

A. Sixty?seven B. Forty?five

C. Twenty?three D. One hundred

A 【解析】句意：如果a＝6，B＝5、算式“a＋2ab＋1＝？”- ________。本题采用推算法。计算6＋2×6×5＋1可得67。故选A。

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