Astronaut Jim Voss has enjoyed many
memorable moments in his career, including three space flights and one space
walk. But he recalls with special fondness a decidedly earthbound(只在地球上的)
experience in the summer of 1980 when he participated in the NASA-ASEE Summer
Faculty Fellowship Program. Voss, then a science teacher at West Point was
assigned to the Marshall Space Flight Center’s propulsion(推进) lab in Alabama to
analyze why a hydraulic fuel pump seal on the space shuttle was working so well
when previous seals had failed. It was a seemingly tiny problem among the vast
complexities of running the space program` Yet it was important to NASA because
any crack in the seal could have led to destructive results for the astronauts
who relied on them. "I worked abit with NASA engineers, "says
Voss, "but I did it mostly by analys A. I only B. Ⅱ only C. I, II and Ⅲ all included D. I and Ⅱ only
更多"Passge Three
Astronaut Ji"的相关试题:
[单项选择] Passge Three
Astronaut Jim Voss has enjoyed many
memorable moments in his career, including three space flights and one space
walk. But he recalls with special fondness a decidedly earthbound(只在地球上的)
experience in the summer of 1980 when he participated in the NASA-ASEE Summer
Faculty Fellowship Program. Voss, then a science teacher at West Point was
assigned to the Marshall Space Flight Center’s propulsion(推进) lab in Alabama to
analyze why a hydraulic fuel pump seal on the space shuttle was working so well
when previous seals had failed. It was a seemingly tiny problem among the vast
complexities of running the space program` Yet it was important to NASA because
any crack in the seal could have led to destructive results for the astronauts
who relied on them. "I worked abit with NASA engineers, "says
Voss, "but I did it mostly by analys A. Because previous seals all failed. B. Because it was very complex in running the space program. C. Because great care has to be taken of the hydraulic fuel pump sealing. D. Because any crack in the seals would cause disastrous results for astronauts.
[单项选择]
Passage One
Astronaut Jim Voss has enjoyed many
memorable moments in his career, including three space flights and one space
walk. But he recalls with special fondness a decidedly earthbound (为地球吸引所束缚的)
experience in the summer of 1980, when he participated in the NASA-ASEE Summer
Faculty Fellowship Program. Voss then a science teacher at West Point, was
assigned to the Marshall Space Flight Center’s propulsion (推进) lab in Alabama to
analyze why a hydraulic fuel pump on the space shuttle was working so well when
previous seals had failed. It was a seemingly tiny problem among the vast
complexities of running the space program. Yet it was important to NASA because
any crack in the seal could have led to destructive results for the astronauts
who relied on them. "I worked a bit with NASA engineers," says
Vo A. Because previous seals all failed. B. Because it was very complex in running the space program. C. Because great care has to be taken of the hydraulic fuel pump sealing. D. Because any crack in the seals would cause disastrous results for the astronauts.
[单项选择]Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound(只在地球上的) experience in the summer of 1980 when he participated in the NASA-ASEE Summer Faculty Fellowship Program. Voss, then a science teacher at West Point was assigned to the Marshall Space Flight Center’s propulsion(推进) lab in Alabama to analyze why a hydraulic fuel pump seal on the space shuttle was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program` Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them. "I worked abit with NASA engineers, "says Voss, "but I did it mostly by analysis. I used a handheld calculator, not a computer, to do a thermodynamic(热力学的) analysis. "At the end of the summer, he, like the other NASA-ASEE fellows wor A. Because previous seals all failed. B. Because it was very complex in running the space program. C. Because great care has to be taken of the hydraulic fuel pump sealing. D. Because any crack in the seals would cause disastrous results for astronauts.
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