Đề thi cuối kì 2 Tiếng Anh 12 Global Success có đáp án - Đề 7

The word "It" in paragraph 3 refers to __________.

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The word "It" in paragraph 3 refers to __________.

a secret weapon used by Elon Musk

unpacking complex problems into fundamental elements

developing a new solution from beginning

problem-solving approach used by polymaths

Giải thích

Choose D