斯蒂芬·霍金:探知外太空,保人类长存

(整期优先)网络出版时间:2017-05-15
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StephenHawking,thefamous1)astrophysicist,saysweneedtospreadintoouterspace.Ifwedon't,hesays,itwillbedifficultfortheworldto“2)avoiddisasterinthenexthundredyears,letalonethenextthousandormillion.”HawkinghasLouGehrig'sdisease.Hehastospeakwiththeaidofa3)computersynthesizedvoice.