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【判断题】
直线导轨是一种滚动导引，它由钢珠在滑块与导轨之间作无限滚动循环，使得负载平台能沿着导轨以高精度作线性运动，其摩擦系数可降至传统滑动导引的1/50，从而达到很高的定位精度。在直线传动领域中，直线导轨副一直是关键性的产品，目前已成为各种机床、数控加工中心、精密电子机械中不可缺少的重要功能部件。【图片】A.
正确
B.
错误
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举一反三
【单选题】In what way did O’Neil show the cheating of Instagram?
A.
The pictures about her were not taken but edited actually.
B.
O'Neil's real life was very bad.
C.
O'Neil didn't like taking pictures in real life.
D.
O'Neil's real life was not really like what showed in the pictures.
【简答题】现场检查时，可根据实际情况在检查组下成立若干专项检查小组，每个专项检查小组成员不能少于3人，其中设1名小组长，负责专项检查工作。
【单选题】O'Neill was one of the most famous advocates of a way of writing called 'naturalism.' This involved both a technique and a way of viewing life. Essentially, the literary concept of naturalism grew out...
A.
O'Neill as a famous playwright.
B.
Naturalism as a dramatic form.
C.
O'Neill as a realist playwright.
D.
The tragedy of being a man.
【简答题】我们在做营销的时候研究用户画像的目的是为产品筛选出目标客户,通过信息类别来筛选指定用户群。
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