A roughly 500-page assessment last year by the National Academies of Sciences, Engineering, and Medicine, which reviewed decades of research, concluded that immigrants are “integral to the nation’s economic growth” and have little or no effect on overall employment and earnings for workers ...
LETTER V. Visit to the City of Philadelphia. Remarks on the Friends. Laws and Institutions of William Penn. Penal Code. Dr. Rush. Abolition of the Slave Trade. Emancipation of the Slaves in the Northern States. Condition of the Negro in the Northern States. Citation Information Vi...
Maria Kelleher
宾夕法尼亚州立大学(The Pennsylvania State University ,简称Penn State,缩写PSU),创建于1855年,主校区位于美国宾夕法尼亚州斯泰特科利奇(State College),同时还拥有二十三个分校区,是一所美国的公立研究型…