阿摩線上測驗
36. Using the symbols +, -, and 0 to indicate interspecific species interactions, where the first symbol refers to the first organism mentioned, what interactions exist between mycorrhizae and evergreen tree roots?
(A) +/-
(B) 0/0
(C) +/0
(D) +/+
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統計： A(1), B(0), C(1), D(3), E(0) #3411520
統計： A(1), B(0), C(1), D(3), E(0) #3411520
