15. The mature leaves of tomato plants that I grew in my backyard turn dark
purple. What kind of mineral nutrients you should fertilize the plant in order
to recover the green color?
(A)iron
(B) nitrogen
(C) phosphate
(D) potassium
(E) calcium
詳解 (共 1 筆)
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1. 題目解析 題目提到的番茄植物成熟葉...