阿摩線上測驗
44.Some plants can produce chemicals that play the significant role in protecting plants from being
eaten by herbivores or predators. We call these chemicals as
(A)primary compounds
(B)secondary compounds
(C)detergents
(D)drugs
答案：登入後查看
統計： A(0), B(3), C(1), D(0), E(0) #3105092
統計： A(0), B(3), C(1), D(0), E(0) #3105092
