1.

What are the three classes of salty soil?

A. Saline soil, Saline-alkali soil, Non-saline soil
B. Saline soil, Alkali soil, Non-saline soil
C. Saline soil, Alkali soil, Saline-alkali soil
D. Alkali soil, Non-saline soil, Saline-alkali soil
Answer» D. Alkali soil, Non-saline soil, Saline-alkali soil


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