What version was used after Shenzhen primary school unified textbooks in autumn 2009?
What version of textbooks were used in Shenzhen primary schools in the autumn of 2009? You can ask: Shenzhen Xinhua Bookstore Co., Ltd. Teaching Material Center.
Address: Floor 2, Qingshuihe Base of Shenzhen Distribution Group,No. Honggang Road 10301KLOC-0 (next to Sungang Middle School and diagonally opposite to the Armed Police Hospital).