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A. Ear auscultation tube examination;　　三声炮响，轰开了山海关大门，从此大清朝建都北京……Everything is shrouded in darkness, only where you are, there is some light.田广的心情黯然了许久，心中有个疑问。讲述的是1938年，被恐怖所笼罩的上海连续发生几起并非偶然的暗杀事件案。七七卢沟桥事变后，日本帝国主义的铁蹄踏向整个中国大地，中华民族到了生死存亡的关头。然而，国民党投降派汪精卫却秘密访问日本卖国求荣。因此，日本内阁宣布，不与蒋介石为谈判对象。蒋介石极为气愤，为排除异己，命令戴笠领导的军统特务组织打着抗日除奸幌子和汪精卫一伙进行绞杀，一场腥风血雨特工战在上海拉开序幕。时隔2年回到了故乡和歌山市日都岛。Use Python for data analysis: This book is a detailed version of Python's pandas package. Learn this to master some basic pandas commands. However, this is not the point, because pandas is too slow to produce a large amount of data and may collapse (I don't know if there is any improvement now-!) The point is, through studying this book, I feel a little about the data operation and am familiar with the basic data operation process. All the operations in this book can be replaced by native Python, and Pandas package is not needed. Finding feelings is very important.