GWD is the initials of Guan Weidong, and the GWD problem is his simulation problem. He has now established a training institution for studying abroad in Bosen, and a lot of information can be learned online.

GWD originated from the paper test questions of GMAT, and originated from the same historical test bank as the current GMAT computer test bank. In the latest GMAT test, the original question of GWD often appears, and it also appears in the latest GMAT tester classics. GWD and GMAT are no different from actual combat except in form. Therefore, when doing GWD, the grasp of time can be well exercised in the model test.