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【简答题】良渚文化玉琮的代表性形制、纹饰和工艺特征有哪些？（ ）
A.
形制多样，有多节的细长大玉琮、有 2 节或单节的短矮玉琮、还有细短的小玉琮；
B.
多数琢有兽面纹，且兽面纹绝大多数以外方柱棱线为对称；
C.
兽面纹有的简单、只有单阴刻线的圆形眼睛和椭圆形嘴，有的复杂，眼睛有多圈、嘴中露齿、嘴部为浅浮雕、面部充满了阴刻弧线；
D.
兽面纹有的和神人形象组合出现。
【单选题】Businesses put lots of time and money into new plans, programs and excellent employees with the hope things will change．Yet, at the end of the effort, not much changes．What happens? In most cases, tho...
A.
What past experience is useful for businesses?
B.
How much time is needed for making plans?
C.
How can changes be made in businesses?
D.
What kinds of employees are the best?