阿摩線上測驗
22. Originally, one of the purposes of developing super-plants was _____.
(A) to induce some genetic changes
(B) to bear rich fruits
(C) to survive dry weather
(D) to protect soil
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統計： A(17), B(12), C(161), D(10), E(0) #908332
統計： A(17), B(12), C(161), D(10), E(0) #908332
