【简答题】阅读下列材料,回答问题。 材料一 春秋战国时期,中国的铁器生产由西向东、由北向南逐渐扩展,使列国的生产力发生根本性的变化。春秋中后期牛耕已成为一种常见现象。战国时期,牛耕进一步推广并开始使用铁犁,耕作技术进一步提高。牛耕的推广和铁制农具的广泛使用,使一家一户为一个生产单位的个体经营方式成为可能,这就为土地私有制的出现提供了条件。男耕女织的综合型小农经济开始形成,并成为经济结构的重要组成部分。 ——...
【判断题】3 Kumiko teaches Chinese.
【简答题】作为农耕经济的补充,中国古代的工商业高度发达。随着天朝上国迷梦的,中国工业化的征程艰难起步,曲折发展。阅读以下材料,回答问题。
材料一官方以法令来保护手工业技术的世代传习。有时,为了技术的世代传习,官府还要干涉到某些手工业者家属的婚姻,使民间技术的传习成为顽固的传统。从元稹《织女词》:“东家头白双女儿,为解挑纹嫁不得。”可见一斑。一直到不久以前,各地还有所谓“祖传秘方”的存在。
——白寿彝...
【单选题】One of the prominent factors that has made GIs presence in South Korea particularly tougher because ______ .
A.
a few bad apples have dented the reputation of the American servicemen in South Korea
B.
many Koreans have biased views against American servicemen
C.
some foreign countries had their soldiers present in South Korea in the past
D.
South Korea no longer needs U. S. economic aid
【判断题】若n阶方阵A可逆,则其逆矩阵不是唯一的!
【单选题】One of the prominent factors that has made CIs presence in South Korea particularly tougher because ______.
A.
a few bad apples have dented the reputation of the American servicemen in South Korea
B.
many Koreans have biased views against American servicemen
C.
some foreign countries had their soldiers present in South Korea in the past
D.
South Korea no longer needs U.S. economic aid