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Question 19. The word These in paragraph 3 refers to ______. A. management-zone maps compiled from satellite imagery B. older implements tha...
Đề bài
Question 19. The word These in paragraph 3 refers to ______.
A. management-zone maps compiled from satellite imagery
B. older implements that follow fixed prescription files
C. systems that sense microsite conditions and adjust inputs in real time
D. conventional, uniform-rate fertilizer spreaders
