The 2009 college entrance examination for science subjects was held on June 7th and 8th, with some provinces continuing the test until the 9th. After the exam, Chemistry Education Network will promptly release the 2009 science comprehensive test questions (chemistry) from all over the country. The 2009 Beijing college entrance examination science comprehensive test questions and answers; The 2009 Tianjin college entrance examination science comprehensive test questions and answers.