五一劳动节ppt，用蓝天白云做背景图，显得朝气蓬勃，内容详细的介绍了五一劳动的来源，还有许多旅游的好去处，不容错过的精彩内容！
May Day PPT, with blue sky and white clouds as background map, it is vibrant, and detailed description of the source of Labor, there are many good place for tourism, exciting content not to be missed!
介绍了张家口五一广场综合楼工程结构设计的主要内容，包括结构布置、电算结果分析、地基基础的设计等问题。
This paper introduces the structural design of Zhangjiakou 51 square building, including the structural arrangement, the computing result analysis and the foundation design, etc.
这是一个关于五一节劳动最光荣的主题班会PPT，以枫叶作为背景，显得非常清新，详细的介绍了五一劳动节的由来，不容错过！
This is a most glorious May Day labor class meetings PPT, with maple leaf as a background, it is very fresh, a detailed description of the origin of May Day, not to be missed!
这是一个关于五一节劳动最光荣的主题班会PPT，以枫叶作为背景，显得非常清新，详细的介绍了五一劳动节的由来，不容错过！
This is a most glorious May Day labor class meetings PPT, with maple leaf as a background, it is very fresh, a detailed description of the origin of May Day, not to be missed!
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