It's better to buy two liters of paper with three sections.
Does the subject want to ask, "It is better to buy test papers on holiday from the second day to the third day"? People's Education Publishing House, Grade Two, Volume II, Complete Works of China Mathematics. People's Education Edition (PEP) is a complete set of Chinese and mathematics for the second grade primary school, which is combined with the new version of summer homework for the second grade, including synchronous reading comprehension training, strengthening training questions, previewing, reviewing, learning and consolidating. At the same time, you can also consider buying a set of Chinese mathematics clothes for sunshine students to connect with the two-liter three-person teaching version in the summer vacation.