1300+ câu trắc nghiệm Từ vựng học có đáp án - Phần 37

mathematical astronomy was the great _______ by the greeks of the 5th century bC.

20/30

mathematical astronomy was the great _______ by the greeks of the 5th century bC.

Innovator

Innovation

Innovative

Innovated

Giải thích

chọn đáp án B.