Duba zuwa sashi na ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda sashi: Passage: Da zarar Kennedy ya bayyana manufa, masu tsara shirin Apollo sun fuskanci kalubale na tsara jirgin sama wanda zai iya saduwa da shi yayin da ya rage haɗari ga rayuwar ɗan adam, farashi, da buƙatun fasaha da ƙwarewar 'yan saman jannati. An yi la'akari da hanyoyi huɗu na manufa: Tambaya: Hanyoyin manufa nawa ne?
Hudu