【判断题】在PowerPoint 2010中,演示文稿缺省的文件扩展名为.PPTX。
【单选题】The old man was ________ poor ________ he couldn’t buy any food.
【判断题】在PowerPoint中,演示文稿缺省的文件扩展名为.PPTX
【单选题】在 PowerPoint 2010 中,演示文稿存盘时的缺省扩展名是()
【单选题】Mr. Flowers had no way to prevent harm to his glasshouse because ______.
A.
he was too old to see who did it
B.
the boys ran too fast for him to catch
C.
it was impossible for him to be on guard all the time
D.
he was too kind to beat the boys