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23. 養七彩神仙時,下列何者會使水中 pH 值昇高(A)打氣(B)加二氧化碳(C)生物過濾(D)加液肥。
問題詳情
23. 養七彩神仙時,下列何者會使水中 pH 值昇高
(A)打氣
(B)加二氧化碳
(C)生物過濾
(D)加液肥。
參考答案
答案:A
難度:適中0.6
統計:A(3),B(0),C(1),D(1),E(0)
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143. 海水魚類之必需脂肪酸為下列何系列脂肪酸(A)n-3系(B)n-6系(C)n-8(D)n-3 和 n-6 系。
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