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2016年职称英语考试综合类阅读判断模拟试题(20)免费下载，
pace-ferry service, he figured his bread-and-butter business would be lofting satellites into high-Earth orbit. Now he thinks he may have figured wrong. "People were always asking me when they could go," says Kelly, who runs Kelly Space & Technology out of San Bernardino, California. &qu
2016年职称英语考试综合类阅读判断模拟试题(20)
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