問題詳情
37. The first plants arose during the __________ era.
(A) Cenozoic
(B) Mesozoic
(C) Paleozoic
(D) Precambrian
(E) Tertiary
(A) Cenozoic
(B) Mesozoic
(C) Paleozoic
(D) Precambrian
(E) Tertiary
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