Fragmented learning: It means that learners accumulate or acquire knowledge and information in a bit-by-bit manner. Which of the following are not fragmented learning? ['When Mom drives Xiaomin to school, Xiaomin often reads villain books.', 'Pony strictly implements his own learning plan, remembers 5 idioms a day, reads an article.', "A certain brand of mobile phone has just been released, Xiao Liu queues up at the store overnight, while queuing to read Mo Yan's `` Frog ''.", 'In order to complete a paper, Xiao Gu spends several hours consulting relevant literature every night.']