Lance Bass wasn’t able to go on a tour of space because of health problems. Each year 500,000 space tourists could be flying in

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问题 Lance Bass wasn’t able to go on a tour of space because of health problems.
Each year 500,000 space tourists could be flying into space if ticket prices could be lowered to ______.

选项

答案$50000

解析 本题空白处问“如果太空旅行的价格在多少以下,每年将有500,000游客做太空旅行”。相关部分在文中第十六段,提到“1998年,NASA以及空间运输协会联合报告称:技术进步将使太空旅行的费用降低至50,000美元,十年后甚至会低至20,000美元或10,000美元。这一报告得出结论,太空旅行的票价如果低于50,000美元,那么每年将有500,000游客做太空旅行”。因此,答案为$50,000。
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