【摘 要】
:
沙伯泉与沙氏邮商家族沙伯泉(1906-1990)回族,北京人。北京牛街回族中有五个家族从事邮票行业。沙氏家族是其中之一,以沙伯泉为首,沙岳川、沙永华也是邮票商。
Shabo Quan a
论文部分内容阅读
沙伯泉与沙氏邮商家族沙伯泉(1906-1990)回族,北京人。北京牛街回族中有五个家族从事邮票行业。沙氏家族是其中之一,以沙伯泉为首,沙岳川、沙永华也是邮票商。
Shabo Quan and Shashi merchant family Shabo Quan (1906-1990) Hui, Beijing. There are five families in the Beijing Niujie Muslim family engaged in the stamp industry. Shashi family is one of them, led by the sand Boquan, Sha Yuechuan, Sha Yonghua is also a stamp dealer.
其他文献
本文将货币政策的风险承担渠道延展到制造业企业层面,运用2005~2018年中国制造业上市公司的年度数据,实证分析货币政策对不同类型制造业上市公司风险承担水平的影响.研究发现:
China’s stock market is booming, but will investors keep the momentum going?It was a surprise indeed when the Shanghai Composite Index began to reach record hi
HiPSC-CMs have been successfully differentiated into beating cardiomyocytes with high efficiencies [1].The main limitation is that most of the generated car
课改十五年了,我们的老师,不管你任教哪一科目,在教学理念上都有一定的转变。但是,理念的落实上仍然有较大的差别,特别是乡镇学校在非考试科目(音、体、美)上,更是敷衍了事。课堂上,教师简单的对课本知识进行“照本宣科”,然后就叫学生自己自习,导致很多学生“喜欢”美术课,——只要你不影响课堂纪律,可以睡觉,可以做别的科目的作业,做与课堂无关的事情。为何会出现这样的现象?我们将如何改变这种现状呢?我认为是老
It is known that cell microenvironment, including the extracellular matrix (ECM),neighbouring cells and surrounding soluble factors, profoundly affects cell
Production of maximum quantities of high quality milk is the most important aspect of every dairy operation.As mastitis significantly contributes to reduced
近两年,积极财政政策加码伴随债务治理不断升级,地方政府专项债券发行规模迅速上升,在促基建、补短板、稳投资中发挥重要作用,同时如何合理评价专项债支出效率成为政府债务管
In this abstract, we report a novel point-of-care diagnostic device for ultra-fast optical measurement of erythrocyte sedimentation rate (ESR), a nonspecifi
This paper reports the design, fabrication, and test of a novel inverted Y-shaped Selection micro-valve.In the design of the valve, flow stream from the inp
如何“立足教材,又不拘泥于教材”创造性地完成教学任务,是我们作为英语老师培养教育学生的重要课题。我们老师要充分依托教材,辅助以一些课外的教学素材,把两者有机结合起来