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Passage 1
The world¡¯s longest bridge
Rumor has it that a legendary six¡ªheaded monster lurks in the deep waters of the Tyrrhenian Sea between Italy and the island of Sicily£®¡ª¡ª(1)¡ª¡ªWhen completed in 2010£¬the world¡¯s longest bridge will weigh nearly 300£¬000 tons¡ªequivalent to the iceberg that sank the Titanic¡ªand stretch 5 kilometers long£®¡°That¡¯s nearly 50 percent longer than any other bridge ever built£¬¡±says structural engineer Shane Rixon£®
¡ª¡ª(2) ¡ª¡ªThey¡¯re suspension bridges£¬massive structures built to span vast water channels or gorges£®A suspension bridge needs just two towers to shoulder the structure¡¯s mammoth weight£¬thanks to hefty supporting cables slung between the towers and anchored firmly in deep pools of cement at each end of the bridge£®The Messina Strait Bridge will have two 54£¬100-ton towers£¬which will support most of the bridge¡¯s load£®The beefy cables of the bridge£®each 1.2 meter in diameter, will hold up the longest and widest bridge deck ever built£®
When construction begins on the Messina
Passage 2
Supermarket
Supermarket is a type of retailing institution that has a moderately broad product assortment spanning groceries and some nonfood lines, that ordinarily emphasizes price in either an offensive or defensive way. As a method, supermarket retailing features several related product lines, a high degree of self-service, largely centralized checkout, and competitive prices. __1__.