单项选择题

All of the following are mentioned as factors threatening seafood EXCEPT ______.

A．change of climate.
B．fish farms.
C．pollutants.
D．rapid development.
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单项选择题
The author's attitude towards the opponents of Worm's study is ______.
A．slight approval.
B．strong disapproval.
C．slight disapproval.
D．strong approval.
单项选择题
Copyright of music may harm the majority of performers in that ______.
A．it in fact protects a few celebrities.
B．it covers the creations of most people.
C．it forbids the rich as well as the poor.
D．it doesn't allow the mass to steal music.
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