In addition to setting the price of a product, business firms must decide () to offer special discount and credit terms to their customers.
A、if
B、which
C、whatever
D、whether
A、if
B、which
C、whatever
D、whether
A、meet the applicable standards B、be marked as additional equipment C、be stowed in a separate area D、All of the above
A、meet the applicable standards B、be marked as additional equipment C、be stowed in a separate area D、All of the above