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Passage Four Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away——straight up. A decade ago, adapting the infrared (红外线) scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers pre-cisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which in- variably includes plants that don’t have pest (害虫) problems. Even better, Paley’s Remote Scanning Services Company could detect crop problems be- fore they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infra- red scanner measured the heat emitted by crops. The data were transformed into a color-code map showing where plants were running" fevers". Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would. The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long-term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. "This technique can be used on 75 percent of agricultural land in the United States", says George Oerther of Texas A&M. Ray Jackson, who recently retired from the Department of Agricultrue, thinks re- mote infrared crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago. Farmers can save a considerable amount of pesticide by （）
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Passage Five The agricultural revolution in the nineteenth century involved two things the invention of labor-saving machinery and the development of scientific agriculture. Labor-saving machinery naturally appeared first where labor was scarce. "In Europe", said Thomas Jefferson," the object is to make the most of their land, labor being abundant; here it is to make the most of our labor, land being abundant." It was in America, therefore, that the great advances in nine-teenth-century agricultural machinery first came. At the opening of the century, with the exception of a crude plow, farmers could have carded practically all of the existing agricultural implements (家具) on their backs; by 1860, most of the machinery in use today had been designed in an early form. The most important of the early inventions was the iron plow. As early as 1790 Charles Newbold of New Jersey had been working on the idea of a cast-iron plow and spent his entire fortune in introducing his invention. The farmers, however, would have none of it, claiming that the iron poisoned the soil and made the weeds grow. Nevertheless, many people devoted their attention to the plow, until in 1869 James Oliver of South Bend, Indiana, turned out the first chilled-steel (冷淬钢) plow. Which of the following can be inferred from what Thomas Jefferson said（）
孙某为与他人合伙经营服装生意，向许某借款1.5万元，约定借期6个月，月利率为银行同期贷款利率的2.5倍，到期本息一起付清。孙某为许某出具了欠条。孙某用此款与他人合伙倒卖服装旧货，被工商机关查获。工商机关将旧货全部没收，对每人罚款1万元。孙某为翻本，竭尽所有财产再次经营服装生意，又亏损，至还款期届满，已经无支付能力。许某多次催要，孙某无法清偿欠款。某日，许某又向孙某催债，恰有姜某找孙某还款，孙某将活岔开，进行掩饰。许某经了解，原来孙某数年前曾借给姜某1.7万元作经营资金，现在本息已达2万余元。孙某认为收回这2万元也得还债，故虽这笔债权已经到期亦不愿行使这一债权。许某遂以孙某为被告向法院起诉，请求孙某收回姜某的借款以清偿许某的债权。 要求： 根据上述资料，回答下列问题。 (1)孙某与许某约定借款月利为银行同期同类贷款利率的2.5倍是否符合规定说明理由。 (2)许某以孙某为被告提起诉讼是否符合法律规定说明理由。
在PowerPoint的大纲视图和______视图模式下，可以改变幻灯片的顺序。
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