There are advanced and backward examination techniques, but it is difficult to say that the college admissions system is advanced or backward. In 1993, scholars pointed out that the examination system is related to the national education systems and social conditions of each country. Some countries have an examination system with It is highly persistent and difficult to change; in some countries, the examination system is undergoing substantial, even rapid reforms. In addition, the reform directions of examination systems in different countries are not the same. What does the text show the author's point of view? ['Historical and objective evaluation of the examination system.', 'College admissions systems have their strengths and weaknesses, making it difficult to distinguish between good and bad.', 'College admissions system should be reformed according to the specific conditions of the country.', 'The examination system abroad has a long history and is worth learning from.']