题目

Four apps for students to learn EnglishQuizletQuizlet is a learning app---a computer program you use on your mobile device. It can help users build and testtheir knowledge of English words and terms. Quizlet has word sets for millions of subjects. And, it is quickly becoming a useful mobile tool for language learners.SocrativeIn Socrative, teachers can create timed learning games. In class, students compete individually or as part of a team against classmates. One game students love is called space Race. In this game, if a team answers a question correctly, their rocket moves forward. This tea以下是《送东阳马生序》删节内容的部分译文：(马生) 等太学生们在太学学习，朝廷每天供给膳食，父母每年有皮袍葛衣送来，坐在高大的屋子里诵读诗书，有司业、博士做他们的老师，凡是应该有的书都集中在这里...........14. 由链接的材料可以看出，马生的学习条件十分优越，那么，作者把自勤且艰”的求学经历告诉他有何用意？