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271. Television violence has contributed directly to rising crime , as evidenced by statistics showing a dramatic rise in copycat crimes . 数据显示模仿的犯罪行为有大幅度的增加，这证明电视暴力是犯罪增加的一部分直接原因。 272. The introduction of adcance agronomic techniques has contributed greatly to the development of agriculture , as indicated by statistics showing increased output in each of the past five years . 数据显示在过去的五年中，每一年的产量都有提高，这表明发达的农业技术的引入对农业发展起到了很大的作用。 273. While it may appear that the gap between rich and poor people is narrowing somewhat , recently released evidence suggests that the opposite is true . 贫富之间的差距看似有一定的缩小，但是最近发布的证据表明事实正好相反。 274. While attaining world peace remains within the realm of possibility , the prevailing trend revolves around regional conflicts and internal strife in many countries . 获得世界和平是有可能的，但是普遍的趋势是存在地区冲突和许多国家内部的斗争。 275. Although statistics are quite often far less reliable than one might wish , other reliable information allows one to closely approximate industrial output figures . | 
