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序号 题目内容
838 According to scientists, human expansion and the human appropriation of Earth's finite resources is the cause of what may be the most sweeping wave of species extinctions since the demise of the dinosaurs 65 million years ago.
839 Although Alice Walker published a number of essays, poetry collections, and stories during the 1970s, her third novel, The Color Purple, which was published in 1982, brought her the widest acclaim in that it won both the National Book Award as well as the Pulitzer Prize.
840 Heating oil and natural gas futures rose sharply yesterday, as long-term forecasts for much colder temperatures in key heating regions raised fears of insufficient supplies capable of meeting the demand this winter.
841 Because it regarded the environmentalists as members of an out-of-state organization, the city council voted that they are denied permission for participating in the parade.
842 In 1913, the largely self-taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians; only one, G.H.Hardy, recognized the brilliance of these theorems, but thanks to Hardy`s recognition, Ramanujan was eventually elected to the Royal Society of London.
843 Cost cutting and restructuring has allowed the manufacturing company to lower its projected losses for the second quarter, and they are forecasting a profit before the end of the year.
844 The Life and Casualty Company hopes that by increasing its environmental fund reserves to $1.2 billion, that it has set aside enough to pay for environmental claims and no longer has to use its profits and capital to pay those claims bit by bit, year by year.
845 Like ancient Egyptian architectural materials that were recycled in the construction of ancient Greek Alexandria, so ancient Greek materials from the construction of that city were reused in subsequent centuries by Roman, Muslim, and modern builders.
846 Especially in the early years, new entrepreneurs may need to find resourceful ways, like renting temporary office space or using answering services, that make their company seem large and more firmly established than they may actually be.
847 Unlike the nests of leaf cutters and most other ants, situated underground or in pieces of wood, raider ants make a portable nest by entwining their long legs to form "curtains" of ants that hang from logs or boulders, providing protection for the queen and the colony larvae and pupae.
848 Turtles, like other reptiles, can endure long fasts, in their ability to survive on weekly or even monthly feedings; however, when food is readily available, they may eat frequently and grow very fat.
849 Thai village crafts, as with other cultures, have developed through the principle that form follows function and incorporate readily available materials fashioned using traditional skills.
850 With near to all tortilla chips made from corn kernels that have been heated in a solution of calcium hydroxide (lime), this removes the skin of the kernel so water can penetrate.
851 To estimate the expansion rate of the universe is a notoriously difficult problem because there is a lack of a single yardstick that all distances can be measured by.
852 Although the earliest inhabitants of Mapungubwe, building their dwellings of either wattle and daub or unfired mud brick, by the thirteenth century buildings of coral blocks in lime mortar began to appear.
853 The Commerce Department reported that the nations economy grew at a brisk annual pace of 3.7 percent in the second quarter, but that while businesses were expanding their production, unsold goods piled up on store shelves as consumer spending is slowed sharply.
854 Thomas Mann`s novel Doctor Faustus offers an examination not only of how difficult it is to reconcile reason, will, and passion together in any art form, but also a skillfully navigated exploration of the major concerns of modernism .
855 Upon their first encountering leaf-cutting ants in South America, the insects seemed to some Europeans to be carrying bits of greenery to shade themselves from the tropical sun--hence the sobriquet "parasol ants."
856 By skimming along the top of the atmosphere, a proposed new style of aircraft could fly between most points on Earth in under two hours, according to its proponents.
857 According to a recent study, retirees in the United States are four times more likely to give regular financial aid to their children as to receive it from them.

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