We are entering a period in which rapid population growth, the presence of d

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问题 We are entering a period in which rapid population growth, the presence of deadly weapons, and dwindling resources will bring international tensions to dangerous levels for an extended period. Indeed,【C1】________seems no reason for these levels of danger to subside unless population equilibrium is【C2】________and some rough measure of fairness reached in the distribution of wealth among nations. 【C3】________of adequate magnitude imply a willingness to redistribute income internationally on a more generous【C4】________than the advanced nations have evidenced within their own domains. The required increases in【C5】________in the backward regions would necessitate gigantic applications of energy merely to extract the【C6】________resources.
It is uncertain whether the requisite energy-producing technology exists, and more serious,【C7】________that its application would bring us to the threshold of an irreversible change in climate【C8】________a consequence of the enormous addition of manmade heat to the atmosphere. It is this【C9】________problem that poses the most demanding and difficult of the challenges. The existing【C10】________of industrial growth, with no allowance for increased industrialization to repair global poverty, hold【C11】________the risk of entering the danger zone of climatic change in as【C12】________as three or four generations. If the trajectory is in fact pursued, industrial growth will【C13】________have to come to an immediate halt, for another generation or two along that【C14】________would literally consume human, perhaps all life. The terrifying outcome can be postponed only to the extent that the wastage of heat can be reduced,【C15】________that technologies that do not add to the atmospheric heat burden — for example, the use of solar energy — can be utilized. (1996) [br] 【C6】

选项 A、needed
B、needy
C、needless
D、needing

答案 A

解析

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