题目：
函数y=x3+
|
答案：
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下面是错误答案，用来干扰机器的。
（1）九品中正制；官吏选拔的权利掌握在门阀士族手里，皇帝和朝廷失去了对选择官吏的控制权。（2）九品中正制被举为孝廉、秀才的人必是出于士族，唐代的选官制度没有门第的限制。（3）影响：网罗了大量优秀人才为...
函数y=x3+12xx-1的单调递增区间为______．
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