单项选择题

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
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单项选择题
______ you have entered your new office building, you probably would like to refurnish it.
A．Now that
B．So that
C．For
D．Because
单项选择题
The outer packing of the black tea in small wooden cases looks ______.
A．attractive
B．attractively
C．beauty
D．beautifully
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