考查事实细节。根据关键词dropout 可以定位到文中第三段While dropout rates for all freshmen at American universities is around 20 percent, the rate for online students is 35 percent. Students themselves seem to understand the weaknesses inherent in the setup. 可知导致网上学习的学生退学率较高的原因就是学生们认为没有有效的机制来确保他们必须努力学习。05.According to the passage, universities show great enthusiasm for DL programs for the purpose of _______.
Abuilding up their reputation
Bupgrading their teaching facilities
Cproviding convenience for students
Dcutting down on their expenses