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在PowerPoint2016的主界面窗口(即工作窗口)中不包含
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在PowerPoint2016中,制作演示文稿时,若要插入一张新幻灯片,其操作为
Oils used in automobiles need some ______ to improve their characteristics.
When water freezes, it expands approximately ______ percent in volume.
In an automobile engine,heat flows or transfers from the iron or aluminum cylinder to the cooling water,and from the coolant to the copper or aluminum ______ .
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