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23.設向量 ,則下列敘述何者正確? (A)若 平行,則a = - 3 (B)若 (C)若 (D)若 ,則a = 0
問題詳情
23.設向量
,則下列敘述何者正確?
(A)若
平行,則a = - 3
(B)若
(C)若
(D)若
,則a = 0
參考答案
答案:B[無官方正解]
難度:適中0.666667
統計:A(0),B(2),C(1),D(0),E(0)
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