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Using the university schema in Figure 2 , use SQL to do the following: For each student who has retaken a course at least twice

Using the university schema in Figure $2,$ use SQL to do the following: For each student who has retaken a course at least twice $($ i $.$ e $.,$ the student has taken the course at least three times $),$ show the course ID and the student's ID $.$ Please display your results in order of course ID and do not display duplicate rows.

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