13.若a、β 均為實數，且　(A) - 1　(B)1　(C)2　(D)4

問題詳情

13.若a、β 均為實數，且

　
(A) - 1　
(B)1　
(C)2　
(D)4

參考答案

答案：B[無官方正解]
難度：適中0.5
統計：A(0),B(2),C(1),D(0),E(0)

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