201. One view of the economy contends that a large drop in oil prices should eventually lead to l a lowering of interest rates and of fears about inflation, a rally in stocks and bonds, and a weakening of the dollar.

202. After the Civil War, contemporaries of Harriet Tubman maintained that she had all of the qualities of a great leader: coolness in the face of danger, an excellent sense of strategy, and an ability to plan in minute detail.

203. From 1982 to 1987 sales of new small boats increased between five and ten percent annually.

204. In recent years cattle breeders have increasingly used crossbreeding, partly to acquire certain characteristics in their steers and partly because crossbreeding is said to provide hybrid vigor.

205. The peaks of a mountain range, acting like rocks in a streambed, produce ripples(波纹) in the air flowing over them; the resulting flow pattern, with crests and troughs that remain stationary although the air that forms them is moving rapidly, is known as "standing waves."

206. Like Auden&aposs, James Merrill&aposs language is chatty, arch, and conversational--given to complex syntactic flights as well as to prosaic free-verse strolls.

207. In the textbook publishing business, the second quarter is historically weak, because revenues are low and marketing expenses are high as companies prepare for the coming school year.

208. Teratomas are unusual forms of cancer in that they are composed of tissues such as tooth and bone, tissues not normally found in the organ in which the tumor(瘤) appears.

209. The Senate approved immigration legislation that would grant permanent residency to millions of aliens currently residing here and penalize employers who hire illegal aliens

210. Scientists have recently discovered what could be the largest and oldest living organism on Earth, a giant fungus that is an interwoven filigree of mushrooms and rootlike tentacles spawned by a single fertilized spore some 10,000 years ago and extending for more than 30 acres in the soil of a Michigan forest.

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