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绝经后妇女的子宫肌瘤常见有E．
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Alexandre-Gustave Boenickhausen Eiffel was one of the 19th century's master builders. Wielding iron in new ways, he built bridges for the century's burgeoning railways in Europe, South America and Indochina. And after sculptor Frederic Auguste Bartholdi designed a colossal, 151-foot statue of copper sheets in 1871, he turned to France's magician of iron for its internal skeleton. Thus Eiffel was instrumental in creating two of the best-known monuments to liberty in the modern world—the Statue of Liberty and the Eiffel Tower, which was built to mark the centennial of the French Revolution.
During the Nazi occupation in World War II, the tower' s personnel sabotaged the elevators to deprive the enemy of a view of Paris. (Hitler, who refused to climb the 1710 steps to the top, posed for his picture with the tower in the background. ) The city knew liberation was at hand on August 25, 1944, when two Parisians, braving bullets ricocheting through the girders, tore down the swastika and hoisted the tricolor.
The tower illustrates Eiffel's genius for meticulous, innovative engineering. After he had set massive stone foundations beside the Seine, four giant leaning pillars, encompassing four acres, were joined 200 feet up at the first platform, an iron belt of trusses running from pillar to pillar. This belt had to be perfectly horizontal; if out of line by a hair, the structure would tilt disastrously at 1000 feet. Eiffel' s solution: hydraulic jacks embedded in each 440-ton column, enabling him to fine-tune its angle perfectly.
Next, Eiffel deployed creeper cranes that climbed the tower as it grew, helping to hoist 15000 girders and 2.5 million rivets to the exact spot where needed. Astonishingly, the tower was completed in only two years and two months for three percent less than its $ 1.5-million budget, with no fatalities among the 250 workers.
Thanks to Eiffel's mastery of design, the tower gives the wind little to seize. Seen from certain angles, the oddly beautiful tracery of intersecting iron beams appears almost transparent. The tower is so light that pressure on the foundations is only about 60 pounds per square inch—not much more than a well-fed gentleman exerts on the floor when sitting in a chair.
According to the text, who is "France's magician of iron"？
Steven Muller believes that higher education fails to
Seven years ago, when I was visiting Germany, I met with an official who explained to me that the country had a perfect solution to its economic problems. Watching the U.S. economy 62 during the’ 90s, the Germans had decided that they, too, needed to go the high-technology _63_. But how？ In the late’ 90s, the answer schemed obvious: Indians. _64_ all, Indian entrepreneurs accounted for one of every three Silicon Valley start-ups. So the German government decided that it would _65_ Indians to Germany just as America does: by _66_ green cards. Officials created something called the German Green Card and _67_ that they would issue 20,000 in the first year. _68_, the Germans expected that tens of thousands more Indians would soon be begging to come, and perhaps the _69_ would have to be increased. But the program was a failure. A year later _70_ half of the 20,000 cards had been issued. After a few extensions, the program was _71_.
I told the German official at the time that I was sure the _72_ would fail. It’s not that I had any particular expertise in immigration policy, _73_ I understood something about green cards, because I had one (the American _74_). The German Green Card was misnamed, I argued, _75_ it never, under any circumstances, translated into German citizenship. The U.S. green card, by contrast, is an almost _76_ path to becoming American (after five years and a clean record). The official _77_ my objection, saying that there was no way Germany was going to offer these people citizenship. “We need young tech workers,” he said. “That’s what this program is all _78_.” So Germany was asking bright young _79_ to leave their country, culture and families, move thousands of miles away, learn a new language and work in a strange land—but without any _80_ of ever being part of their new home. Germany was sending a signal, one that was _81_ received in India and other countries, and also by Germany’s own immigrant community.
62. A) soar B) hover C) amplify D) intensify
63. A) circuit B) strategy C) trait D) route
64. A) Of B) After C) In D) At
65. A) import B) kidnap C) convey D) lure
66. A) offering B) installing C) evacuating D) formulating
67. A) conferred B) inferred C) announced D) verified
68. A) Specially B) Naturally C) Particularly D) Consistently
69. A) quotas B) digits C) measures D) scales
70. A) invariably B) literally C) barely D) solely
71. A) repelled B) deleted C) combated D) abolished
How much of the power consumed by incandescent bulbs is converted into light？
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