Isbn: 9787030607607 - 挑战数独(u8组)/2017-2018北京市中小学数独比赛题集 北京市数独运动协会 【新华品质 畅读无忧】 (1 résultats)

paperback. Etat : New. Paperback. Pub Date: 188 Language: Chinese Publisher: The scientific publishing Society is a digital game that fully tests the logical thinking ability. reasoning ability and observation capabilities. although the game is simple. but Digital arrangements are harmful. so many educators believe that the number is the best way to train the mind. .…