GRE Reading Comprehension: Maggoosh-GRE阅读Maggoosh - X080VE7_73X2EPV0M

What distinguishes the commentaries on the Jiuzhang Suanshu from almost all other works of Chinese mathematical history is that the authors of the former A. made clear exactly what theorems are true B. spent time justifying their qualifications as authorities C. did not fully disclose all the results in the fields discussed D. provided explicit proofs for the mathematical results presented E. had influence over a large portion of Chinese history