21.企業與顧客之直接商務往來是屬於下列哪種型式的電子商務？(A) B2B(Business to Business)(B) C2C(Consumer to Consumer)(C) G2B(Gove
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21.企業與顧客之直接商務往來是屬於下列哪種型式的電子商務？ (A) B2B(Business to Business) (B) C2C(Consumer to Consumer) (C) G2B(Government to Business) (D) B2C(Business to Consumer)