资料题：Each cadet' s academic grade is determined by,（　）。

In 1799 George Washington.in a letter only two days before his death, strongly urged the establishment of a military academy.Three years later, the Unites States Military Academy opened with an enrollment of ten cadets.By 1902, the Corps of Cadets had increased to nearly 2,500.Each July, a new class enters the Military Academy.These new cadets come from cities and farms; their fathers are mechanics, farmers, and lawyers-the men of America.A young man need not be a"quiz kid" or a star athlete to qualify for West Point.The standards are fairly high; but any healthy, normally intelligent American male between the age of 17 and 21, with proper preparation, can qualify.He must be a citizen of the United States and must be of god moral character.He must never have been married.A cadet soon learns that he is on his own, and that only by character, ability, and effort can he get ahead at West Point.Each cadet must prepare himself for a recitation at each class attendance.He is marked on his recitation.This system, instituted by Colonel Syvanus Thayer in 1817, helps develop in the cadet a confidence in his own abilities.Instructors are glad to give assistance, but only after the cadet has done the original thinking.Although approximately 40 per cent of the cadet's schooling is allotted to military training,the Military Academy offers a balanced program of science and humanities courses, which leads to the granting of a bachelor of science degree upon graduation.