BOSTON — A change of venue and a stern post-game lecture from Manager Buck Showalter about 18 hours earlier did nothing to curb the Baltimore Orioles’ losing ways — or even hide the team’s countless inadequacies for one night. The Orioles continued their unsightly play Thursday night in a 10-4 loss to the Boston Red Sox, a game that included all the elements of so many of the losses before it, with one additional twist: One of the Orioles’ relievers allowed three consecutive home runs. Another short and ineffective outing for a starting pitcher?