单项选择题

It can be inferred that biological orthodoxy favors

A．no change.
B．step-by-step change.
C．all-of-a-sudden change.
D．radical change.
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单项选择题
According to the author, the success of the campaigns may depend on
A．perceived product quality.
B．public perceptions of DNA.
C．efforts made by the organizers.
D．explicitness in explaining DNA to buyers.
单项选择题
The author thinks that unfortunately BMW's campaign has conveyed the idea of
A．poverty,
B．extinction.
C．revolution.
D．evolution.
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