Which sentence has the most formal style?
A、Somemathproblemsweregiventothetesttakers.;
B、Igavethetestsubjectssomemathproblemstosolve.;
C、Testsubjectsweregivenapieceofpaperwith20matricesonit.;
D、Testsubjectsweregivenatasksheetwithaseriesof20matrices.
发布时间：2025-10-14 00:39:43
