我国封建社会宰相制度确立和废止的朝代分别是 [ ]
A、春秋、元朝
B、秦朝、清朝
C、西汉、清朝
D、秦朝、明朝
答案：D
He is rather difficult to make friends with, but his friendship, _____ is more true than anyone else’s.
A．Once gaining
B．Once gained
C．Once is gaining
D．Once he gained
小规模纳税人外购材料的实际成本一般包括 ( )。
A．买价
B．运杂费
C．运输途中合理损耗
D．支付给一般纳税人的增值税
E．进口货物交纳的关税
