单项选择题

The passage is primarily concerned with ______.

A．resolving a public dispute over gun control
B．describing the effects of earlier studies on gun control
C．analyzing the flaws in the previous theories about gun control
D．summarizing the recent development in the studies of gun control

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热门试题

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

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