语法与词汇 12.Hobsion theory states that through unchecked proliferation of the human species, in twenty years the world's population will have out, own the total food supply.
【正确答案】 B
【答案解析】句意：Hobsion理论认为如果人口不受限制地膨胀，20年之内世界人口就会超过总的食品供给。proliferation增殖，扩散。multiplication增殖，增加。maturity成熟。delegation授权，委托。digestion消化；领悟。