[单项选择]

Everyone knows that the world has too many people. But how many people are too many By what standard is the Earth overpopulated Certainly not in terms of living space. The world’s entire population could fit into Jacksonville, Florida, in the USA, with everyone having standing room. Dense cities often are surrounded by nearly empty countryside. For overpopulation to be real, there must be conditions that are undesirable and unmistakably caused by the presence of a certain number of people. If such indications cannot be found, we are entitled to dismiss the claim of overpopulation.
In arguing their case, believers in overpopulation make references to a vague standard known as "carrying capacity", colorfully illustrated with stories about bacteria and herds of zebras (anything but human beings). Famine, deepening poverty, disease, environmental degradation and resource depletion. Yet on no account is there evidence to support the claim of overpopulation.
A. would fit into one American city.
B. has certainly become too big.
C. has generally low standards.
D. would be better off with more standing room.

最新试题

• ●    [判断题]商品价目表应图文并茂,并在醒目位置标示,欢迎拨打客服电话024-12306投诉”字样。
• ●    非承重墙和承重墙连接处应沿墙每50Cm高配置2φ6拉结筋，每边伸人墙内___，以保证房屋整体的抗震性
• ●    You don't need to carry large amounts of cash; act
• ●    患者，男性，23岁。8天前癫痫大发作后出现纳差，几乎不能进食，恶心呕吐，乏力，伴无尿，尿量在0-50
• ●    [单选题]绩效管理的可靠性是绩效管理科学性的表现。以下关于绩效管理可靠性的说法,哪一项是不正确的?(
• ●    [单选题]对（）致热型设备，当缺陷明显时，应立即消缺或退出运行，如有必要，可安排其他试验手段，进一步