We could not reason out the way the robbers escaped，because we were unable to find any ________ of them.

A．chance

B．trace

C．point　

D．signal

下列进项税不得从销项税抵扣有( )。

A．用于应税项目的应税劳务的进项税

B．用于免税项目的应税劳务的进项税

C．用于集体福利的购进货物的进项税

D．用于非正常损失的在产品的购进货物的进项税

E．外购货物用于对外赠送的进项税