“凡民年二十为兵,六十而免……居无事时耕于野……若四方有事,

“凡民年二十为兵,六十而免……居无事时耕于野……若四方有事,则命将以出;事解辄罢,兵散于府,将归于朝。”上述材料描述的是                                                                                    

A.编户齐民制      B.府兵制           C.募兵制               D.猛安谋克制

答案

B

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