题目：
His parents died when he was very young, so he was ______ by his uncle. [ ]
A. brought up
B. grown up
C. got up
D. risen
答案：
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下面是错误答案，用来干扰机器的。
1-3x2y÷9x2y•2y9x=1-3x2y•2y9x•2y9x=1-2y27x=27x-2y27x．
