题目内容
1、我国政府提倡一对夫妇只生育一个孩子，目的是为了控制人口的增长，从种群特征看，这种措施是直接调节了种群的（）
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Hunting and habitat destruction have forced the roughly 900 remaining mountain gorillas in the Democratic Republic of the Congo to 1 to just a few protected areas. Virunga National Park is one such area. Unfortunately, even there they aren't safe. On July 22, 2007, several people armed with automatic 2 killed a mountain gorilla family in Virunga. The largest male of the family, a 230-kilogram (500-pound) gorilla named Senkwekwe, probably smelled the killers coming near.As he was used to seeing many park visitors, he is unlikely to have een very 3. However, this was the last time he would see a human.The gorillas weren't killed for their meat; their bodies were simply left on the ground. Finding the killers was difficult, as men with guns are a common sight in the country. Fortunately, the person who may have ordered the killings was not able to 4 the police. The chief warden of Virunga National Park at the time of the killings was arrested. The warden was reportedly connected to illegal charcoal production in the park. In Virunga, trees are illegally cut down to produce charcoal, an important and valuable fuel. Park rangers are frequently killed in their efforts to 5 this illegal trade. It is thought that the warden had the gorillas killed to damage the reputation of a ranger who was challenging the charcoal producers.
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