17. Many plants can grow in water, without any soil, _____ nutrients are added.
(A) as long as
(B) unless
(C) above all
(D) as soon as

答案：登入後查看
統計： A(105), B(26), C(11), D(9), E(0) #87443

詳解 (共 1 筆)

#2493650
soil  土，泥土，土壤nutrien...
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