单项选择题

What started the public and Congressional concern about deceptive packaging rumpus

A．Consumers' complaints about the changes in the package size.
B．Expensive packaging for poor quality products.
C．A senator's discovery of the tricks in packaging.
D．The rise in the unit price for many products.
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单项选择题
Consumers are concerned about the changes in the package size, mainly because ______.
A．they hate to see any changes in things they are familiar with
B．the unit price for a product often rises as a result
C．they have to pay for the cost of changing package sizes
D．this entails an increase in the cost of packaging
单项选择题
The period of adolescence is much longer in industrial societies because ______.
A．the definition of maturity has changed
B．the industrialized society is more developed
C．more education is provided and laws against child labor are made
D．ceremonies for adolescence have lost their formal recognition and symbolic significance
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