In the early Ming Dynasty, the leader of the Naxi people，named Mude, was made chief of Lijiang Prefecture, exercising control over the Naxi and other ethnic groups nearby. Throughout the Ming Dynasty, the chiefs from the Mu family kept taxes and tribute(贡品)flowing to the Ming court in the form of silver and grain. The Ming, in turn, relied on the Mu family as the mainstay for the control of the people of various ethnic groups in northwestern Yunnan Province.
Later, with the development of the productive forces, buying, selling and renting of land began to take place in the Naxi areas，marking the beginning of a landlord economy.
1．In the 12th century, the main occupation probably be ________.
A．livestock breeding B．agriculture
C．fishing D．forestry
答案：B 从文章第二段第一句可知，10世纪早期至13世纪中期丽江经济经历了重大变化，也就是“agriculture replaced livestock breeding”。
