文字;商朝时甲骨文成熟.
天文历法:商朝采用干支纪日法,是世界上延续时间最长的纪日法.并保留了我国最早的日食月食记录.
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- 12个高中必修1物理题,
- 2已知一交流电动势e=311sin（314+45°）V,分别指出其最大值、有效值、周期、频率、角频率和初相位各是多少
- 3（化为简单句） He really doesn't know how he can operate the machine.
- 4请问,“一岁”翻译成英语是"one year old"还是"one years old"?
- 5she wasuch a proud person that she would die_shewould admit she was wrong
- 6The woman is our geography teacher .You saw her in the park .这两句话合并成定语从句这么做
- 7定义在R上的函数的图像关于点(-3/4,0)成中心对称,对任意的实数X都有f(X)=-f(x+3/2),且f(-1)=0,f(0)=-2,则f(1)+f(2)+f(3)+.+f(2008)的值?
- 8someone hit Jim _____ his head on his way home last night.填the?his?还是/?
- 9描写一种动物外形的句子
- 10my mother is sieeping now.So please_________(be) very quiet