改错题In many of the world's regions, increasing
改错题Long overshadowed by the Maya and Aztec
改错题Although the first pulsar, or rapidly spinning
改错题Heirloom tomatoes, grown from seeds saved from
改错题Around 1900, fishermen in the Chesapeake Bay
改错题The personal income tax did not become permanent
改错题Literacy opened up entire realms of verifiable
改错题Since 1992, in an attempt to build up the
改错题After weeks of uncertainty about the course the
改错题Once numbering in the millions worldwide, it is
改错题Sixty-five million years ago, according to some
改错题In his Uses of Enchantment (1976), it was
改错题The treasury market dropped in response to a
改错题With respect to most species of animals, they
改错题Unlike the United States, where farmers can
改错题In the textbook publishing business, the second
改错题Clouds are formed from the evaporation of the
改错题The computer company reported strong
改错题A federal advisory panel proposes expanding a
改错题Over a range of frequencies from 100 to 5,000