MADISON, Wis. (AP) – Ben Brust scored 20 points and grabbed 12 rebounds Tuesday night as Wisconsin beat Presbyterian 88-43.   It was the third double-double of the season for Brust, who became the first Wisconsin player to record three double-doubles in a four-game stretch since Mike Wilkinson did it in the 2004-05 season.  Sam Dekker came off the bench to score 16 for Wisconsin (3-1), while George Marshall added 12 and Frank Kaminsky 10.  Khalid Mutakabbir scored 14 to lead Presbyterian (0-4), and Joshua Clyburn had 10.  Presbyterian only connected on one of its first 10 shots and was already down 20 points midway through the first half after Marshall connected on a 3-pointer.   Kaminsky converted a three-point play with just more than 2 minutes left in the half to push the lead to 25 points, and Wisconsin poured it on from there.