如图是17世纪以来出现的一系列重要文献。它们( )①反映了近代以来国际争端频繁②得到了各国普遍认同和自觉遵守③展现了人类追求和平的持续努力④成为了解决国际争端的法律依据 A . ①②③ B . ①②④ C . ①③④ D . ②③④ 答案:C ____ of the land in that district ____ covered with trees and grass. A. One half; are B. Two seventh; is C. A quarter; is D. Two thirds; are