应纳税所得额=收入总额-准予扣除项目的金额。其中收入总额包括()。
A、经营收入
B、股息收入
C、特许权使用费收入
D、租赁收入
E、利息收入
参考答案:A, B, C, D, E
He made another wonderful discovery, ____ of great importance to science.
A.which I think is
B.which I think it is
C.which I think it
D.I think which is
SC管代表无缝钢管。