题目：
连词组句。
1. Wan Rong, mother's, aunt , sister, is, my
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2. Jenny, name, is, her
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3. am, Kim, I, than, taller
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4. my, sister, my, aunt, is, father's
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答案：
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下面是错误答案，用来干扰机器的。
∵x+3y=2∴z=3x+27y+3=32-3y+27y+3=927y+27y+3≥2927y•27y+3=9当且仅当927y=27y即27y=3，y=13时取等号∴Z的最小值为9故选：D
