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1、APRIL 2018U.S.GEOPOLITICAL CHALLENGES AND OPPORTUNITIES IN THE ERA OF LOWER OIL PRICESDavid F.Gordon,Divya P.Reddy,Eliza。

2、 CRS INSIGHT Prepared for Members and Committees of Congress INSIGHTINSIGHTi i White House Directs EPA to Review Air Qua。

3、 CRS INSIGHT Prepared for Members and Committees of Congress INSIGHTINSIGHTi i OPEC and NonOPEC Crude Oil Production Agr。

4、CRS INSIGHT Prepared for Members and Committees of Congress Legal SidebarLegal Sidebari i District Court Enjoins DACA Ph。

5、 https:crsreports.congress.gov Updated April 26, 2018Farm Bill Primer: What Is the Farm Bill The farm bill is an omnibus。

6、 https:crsreports.congress.gov Updated April 26, 2018Farm Bill Primer: Budget IssuesFarm Bills from a Budget Perspective。