单项选择题

A．Higher productivity and a higher average income.
B．Higher productivity but a lower average income.
C．Lower productivity but a’ higher average income.
D．Lower productivity and a lower average income.
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单项选择题
A．Packaging is an easy thing.B．A package is very cheap.C．A package can sometimes motivate the customer to buy a product.D．Customers like beautiful packages more than the products,
A．Packaging is an easy thing.
B．A package is very cheap.
C．A package can sometimes motivate the customer to buy a product.
D．Customers like beautiful packages more than the products,
填空题
Solutions lo the problem of weight-gain following the effort to quit smoking include ______.
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