单项选择题

Which one of the following statements is NOT true according to the article

A．Park managers interrupted the forest ecosystems through out the 20th century.
B．Flesh-eating animals should not be eliminated.
C．Insect suppression may cause the forests to over-mature.
D．Severe damage to native vegetation in the forest is caused by fir
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单项选择题
From the article, we can deduce that the author ______.
A．is in support of the present policies
B．appreciates the present management techniques
C．thinks that the forces in nature should be altered
D．is strongly in favor of the natural processes
单项选择题
According to the author, there would not be starving elks, damaged meadows or dying forests in National Parks if ______.
A．the government introduced stricter wildlife laws
B．the National Park Service employed more wildlife management techniques
C．the natural processes were restored
D．we continued to improve our natural environment
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