单元自测7(10分) 试卷总分:100 得分:100 一、选择填空,从A、B、C三个选项中选出一个能填入空白处的最佳选项。(每题10分) 1.Some universities offer free, non-credit MOOCs __________to anyone in the world. A.useful B.available C.easy 2.Well, that’s to say, every coin has two sides, ________technology. A.so is B.s…