企业发生的借款利息支出，在计算应纳税所得额时不得从收入总额中扣除的有 ( )。A．

--- Do you know what Millie and Andy were doing at 8 o’clock yesterday?

--- As Millie_____ TV, Andy _____ the door to welcome Tom.

A．was watching: was opening

B．watched; opened

C．was watching; opened

D．watched: was opening

肛裂好发于肛门齿线以下截石位____、____点处。

长期反复交替使用几种不同农药，易使病虫产生抗药性。

接地导线应采用（）芯导线。

A.铁

B.铜

C.铝

D.钢

在面向对象方法中，类的实例称为______。