56.My talk is concerned __________ the new product. (A)of (B)with (C)in (D)at

問題詳情

56.My talk is concerned __________ the new product.
(A)of
(B)with
(C)in
(D)at

參考答案

答案：B

統計：A:0,B:2,C:0,D:0,E:0

難度：計算中

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