Slogan product

Test analysis: From the slogan in the stem, we can know that this question mainly examines students' accurate memory of the battle of crossing the river. According to the knowledge learned,1April, 949, Mao Zedong and Zhu De gave the order to March into the China People's Liberation Army, which was divided into three divisions to cross the river. Nanjing was liberated on the 23rd, so I chose A.