“三纲五常”、“三从四德”的思想都是从( )的理论而来的。
A.儒家学说
B.道家学说
C.宋明理学
D.佛教
参考答案:C
I you a beautiful present for your birthday,but I was short of money at that time.
A.would buy
B.had bought
C.would like to have bought
D.must have bought
在下列事件中,可引起质量波动的偶然性原因是( )。
A.设计计算允许误差
B.材料规格品种使用错误
C.施工方法不当
D.机械设备出现故障