题目内容

根据上述材料,下列说法正确的是()。

A. 2010年,浙江省的文盲/半文盲人数比2000年下降了22%
B. 东部地区主要省市的平均受教育年限均高于全国平均水平
C. 第三次普查以来.浙江省受教育水平为初中的人群始终占多数
D. 根据第六次普查结果.浙江省的人口受教育程度要差于江苏省

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活塞环安装入活塞后,应有一定的侧隙,侧隙的大小可用()来检查。
A 游标卡尺
B 塞尺
C 千分尺
D 内径千分尺

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“-”符号表示形位公差中的()误差。
A 面轮廓度
B 线轮廓度
C 圆度
D 直线度

以下选项不属铣床试运行前的准备工作内容的是()。
A 主轴轴承的精度检查
B 电气装置的清洁、紧固
C 丝杆的清洗
D 润滑油的油质检查

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