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The word “their” in paragraph 2 refers to .

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This question belongs to "Đề Thi Thử Tốt Nghiệp Tiếng Anh 2026 Sở GD Nghệ An Lần 2" on Học Mỗi Ngày. Review the answer, solution, and related items in the same set to study more effectively.

Question detail

The word “their” in paragraph 2 refers to .

A

agricultural facilities

B

irrigation networks

C

temperature controls

D

greenhouse systems

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