技术,财力都在走下坡路。航天飞机走路弯路,两次事故已经把信心整没了。反之,中国走上坡路,永不了多久就会领先的。你就接着难受把。
技术,财力都在走下坡路。航天飞机走路弯路,两次事故已经把信心整没了。反之,中国走上坡路,永不了多久就会领先的。你就接着难受把。
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