17. Travelers Insurance Company ______ for a person insured. 

   A. will pay for all the cost of life  

B. will pay the weekly income or even that of lifetime

   C. won’t get much from the firm  

D. will provide everlasting pension as well as medical expense

                 E

On its departure from Edwards Air Force Base in California on December 14, 1986, the Voyager’s success seemed doubtful. The plane taxied to the very end of the runway before slowly becoming airborne. The tips of its wings dragged limply on the ground. With this menacing takeoff, the Voyager started on its history making flight around the world.

Circling the globe without stopping had been done before. However, the Voyager was the first plane to fly around the world without refueling.

To carry enough fuel for such a trip required a plane designed for efficiency. The wings of the Voyager are light and flexible, so flexible that they flap (拍动), bowing at a 12 meter arc. In rough air the plane pitches and rolls, like a row-boat in heavy swells.

To keep the plane light, the cockpit has only one seat. The crew, made up of Jeana Yeager and Dick Ruyan, had to roll over each other to switch off piloting duties. Finally, to maintain maximum efficiency, the plane can’t fly faster than 200km/hr. On average it goes no faster than a race car in the Indy 500. At this speed, it took nine cramped (难忍的) days to circle the globe. The journey of the Voyage was as much a testimony to human endurance as it was to innovative engineering.

The Voyager’s route was planned to avoid two dangers: rough weather and unpredictable or hostile countries. Even with the careful planning, the crew ran into both. They had to pass close by a hurricane, at one point doing a 180-degree turn to avoid heavy turbulence (猛烈地、无规则地气流). Refused emergency permission to fly over Vietnam, the Voyager skirted dangerously close to a wall of thunderstorms, looming more than 25,000 meters high. They suffered a broken wing tip before they even left the ground and came uncomfortably close to crashing in the 11th hour.

Limping home on dangerous low fuel tanks, the Voyager cruised over Edwards Air Force Base early on December 23, 1986. Thousands of people came out to watch the historic landing.

Today the Voyager is on display at the National Air and Space Museum in Washington, D.C.. It hangs with planes of other famous and daring pilots who dared to do the undoable.

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