const myObserver = new ResizeObserver(entries = {
Once you’re done, you can download it as a PPTX or present it directly from the PowerPresent platform. This lifetime subscription to PowerPresent Unlimited Presentations lets you create as many as you like and edit them as much as you need.，详情可参考新收录的资料
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（作者为首都师范大学交叉科学研究院教授）