10个数复式二中二多少组3个中几

简介：When Mongolia also attacked the capital first, the fiercest battle took place northwest of the capital, in the direction of Xizhimen. At that time, Yu Qian did not order the Ming army to hide in the city and defend it. Instead, he ordered the Ming army to go out of the city to meet the enemy, build a stronghold with their backs on the moat, and use the densely packed private houses outside the city to neutralize the power of the Mongolian cavalry's assault.