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依據「淡江大學學生選課規則」第八條規定：研究生修習之科目，係屬他系所、不同學制及他校開課者，必須經所屬學系、所主管、他系、所主管及任課老師同意，均以個案申請；選修不同學制之課程，每學期以一科為限，上述互選之科目至多以六學分計算於畢業學分數內。博士班學生修習同系所碩士班課程至多以九學分計算於畢業學分數內；但各系所另有規定者，經各系所務會議及院務會議通過後，從其規定。

Accoding to the Article 8 of "TKU Regulations on Student Course Selection", graduate students who wish to take courses from other departments, other course programs (bachelor degree programs, etc.), or other course providers must first gain approval from the head of their own department / graduate institute, the head of the department / institute offering the course, and the instructor responsible for teaching the course. An individual application must be made for each of these steps. However, for courses offered in other course programs (bachelor degree programs, etc.), an upper limit of one such course per semester applies. The above mentioned courses – offered by other departments, course programs, or course providers – can count for no more than six credits out of all credits required for graduation. If a Ph.D. student studies master courses of the same department, at most 9 credits can be computed in the graduation credits of the Ph.D. student. However in the case where a department or an institute has its own regulations that have been passed by the Academic Affairs Committee of the department or institute and the Academic Affairs Committee of the college, those regulations shall be followed.

意思就是本系博士班學生可以去修其它系研究所博士班的課，但要經過任課老師與對方系和本系的主任都同意才能選；如果要修其它系碩士班的課，也一樣要經過任課老師與對方系和本系的主任都同意才能選，不過每學期只能選一科；總計最多只能承認外系課程六學分為畢業學分。

不過，本系博士班學生最多只能選修本系碩士班課程十學分。（本系已開會修正通過為十學分）

It means our Ph.D. student can take Ph.D. courses of other departments, but only after the teacher of the course, the chairperson of other department and our department agree. If a Ph.D. student wants to take master courses of other departments, the teacher of the course, the chairperson of other departments and our department must all agree, but only one course per semester. In total, only a maximum of 6 credits from other departments can be accepted as graduation credits.

However, students in our Ph.D. program can take the master courses of our department as elected ones, and at most 10 credits can be recognized as graduation credits. (Approved by our departmental meeting)