27.The question _______ at present has something important to do with our nature.

A．to be discussed

B．to be discussing

C．discussed

D．being discussed

在计算应纳税所得额时，允许扣除的税金是（）。

A.企业所得税税款

B.允许抵扣的增值税税款

C.不允许抵扣的增值税税款

D.与生产经营无关的税款支出