frankthu - 博客园

2017年6月

摘要： There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by 阅读全文

posted @ 2017-06-20 22:05 frankthu 阅读(174) 评论(0) 推荐(0)

新概念4-17

摘要： In the early days of the settlement of Australia, enterprising settlers unwisely introduced the European rabbit. This rabbit had no natural enemies in 阅读全文

posted @ 2017-06-17 00:14 frankthu 阅读(120) 评论(0) 推荐(0)

CPA00 01 02

摘要：机考收集信息分类汇总会计凭证报表财务会计核算确认计量记录报告监督分类汇总信息阅读全文

posted @ 2017-06-15 22:25 frankthu 阅读(126) 评论(0) 推荐(0)

新概念4-16

摘要： In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglect 阅读全文

posted @ 2017-06-15 17:00 frankthu 阅读(136) 评论(0) 推荐(0)

近代物理2

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posted @ 2017-06-13 13:45 frankthu 阅读(112) 评论(0) 推荐(0)

答疑汇总-02

摘要：单调性求作变换：x=t/√2 化为正态分布的分布函数,再利用正态分布函数表求值：原式=1/√∫[0,√2]e^(-t^2/2)dt= √π*1/√(2π)∫[0,√2]e^(-t^2/2)dt=√π*[Φ(√2)-Φ(0)]=√3.14159[0.9213-0.5]= 0.7467 阅读全文

posted @ 2017-06-12 11:10 frankthu 阅读(128) 评论(0) 推荐(0)

近代物理1-狭义相对论基本原理

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posted @ 2017-06-11 22:02 frankthu 阅读(443) 评论(0) 推荐(0)

理解Marx-8 9 10晚年的思考马恩关系再认识一段思想史的公案

摘要：自然科学俄国另一个欧洲马恩关系马克思学术化阅读全文