70 柑橘葉面噴施硫酸亞鐵時,其適宜的噴施濃度範圍為何?
(A)0.10.2%
(B)79%
(C)1012%
(D)1520%
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統計: A(1), B(1), C(0), D(0), E(0) #4007673
統計: A(1), B(1), C(0), D(0), E(0) #4007673