![ThefirstlivingcreaturestotravelinspacewerethedogsoftheS...]( "ThefirstlivingcreaturestotravelinspacewerethedogsoftheS...")
- 问题详情：ThefirstlivingcreaturestotravelinspacewerethedogsoftheSovietUnionsspaceprogram.Beginningin1951dogsflewaboardsub-orbitalflightstotheheightof63milesandhigher.Theyhelpedtotesttheequipmentthatwouldlaterbeusedbyhumans.Thefirstpairofdogstofly,onJul...
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