阅读下面的短文,文章中有5处空白,文章后面有6组文字,请根据文章的内容选择5组文字,将其分别放回文章原有位置,以恢复文章原貌。 The World’s Longest
Bridge Rumor ’has it that a legendary six-headed monster
lurks in the deep waters of the Tyrrhenian Sea between Italy and the island of
Sicily. (46) When completed in 2010, the world’s longest
bridge will weigh nearly 300,000 tons -- equivalent to the iceberg that sank the
Titanic -- and stretch 5 kilometers long. "That’s nearly 50 percent longer than
any other bridge ever built," says structural engineer Shane Rixon. (47) They’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 Strait
Bridge in 2005, the first job will be to erect two 370 meter-tall steel
towers. (48) Getting these cables up will be something. It’s
not just their length -- totally 5.3 kilometers -- but their weight.
(49) . After lowering vertical "suspender"
cables from the main cables, builders will erect a 60- meter-wide 54,630-ton
steel roadway, or deck -- wide enough to accommodate 12 lanes of traffic. The
deck’s weight will pull down on the cables with a force of 70,500 tons. In
return, the cables yank up against their firmly rooted anchors with a force of
159,000 tons -- equivalent to the weight of about 100,000 cars. Those anchors
are essential. (50) . A Some environmentalists are
against the project on biological grounds. B What do the world’s
longest bridges have in common C If true, one day you might spy the
beast while zipping (呼啸而过) across the Messina Strait Bridge. D They’re
what will keep the bridge from going anywhere. E The second job will be
to pull two sets of steel cables across the strait, each set being a bundle of
44,352 individual steel wires. F They will tip up the scales at 166,500
tons -- more than half the bridge’s total mass.