单项选择题

In the author's opinion, the attempt to eradicate the Japanese knotweed ______.

A．is worthy of praises
B．reflects people's desire to protect ecological biodiversity
C．shows people's passion to save endangered species and vulnerable ecosystems
D．is biased by human preferences
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单项选择题
The author pointed out all the following facts EXCEPT that ______.
A．to eliminate alien species for the sake of the indigenous ones is also ecological imperialism
B．humans efforts to correct ecological disorders is actually based on human preference
C．people's attitudes towards alien species involve moral considerations
D．human have to design nature to protect biodiversity
单项选择题
As for what to do about alien species, the author thinks ______.
A．who should make such decisions is open to doubt
B．the decisions should be based on scientists' conclusions
C．decision making should involve more people other than scientists
D．it is morally unacceptable to eradicate all alien species
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