单项选择题

What is a possible negative effect of olestra according to some critics

A．It may impair the digestive system.
B．It may affect the overall fat intake.
C．It may increase the risk of dancer.
D．It may spoil the consumers' appetite.

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单项选择题

The author refers to Carmen Lomas Garza's work as all of the following EXCEPT ______.

A．instructive
B．precise
C．detailed
D．naive

单项选择题

What does the passage say about the oral tradition in Chicano culture

A．It is very important.
B．It is no longer relevant.
C．It is being replaced by the written word.
D．It is primarily rural.