2. 外语
  3. Advertising media like direct mail, radio, television and newspapers______ to increase the sales of industrial products.

Advertising media like direct mail, radio, television and newspapers______ to increase the sales of industrial products.

admin2012-05-07  40
问题 Advertising media like direct mail, radio, television and newspapers______ to increase the sales of industrial products.
选项 A、have been used
B、will be used
C、is being used
D、has been used
答案A
解析 时态辨析题。根据句意，应该用现在完成时的被动语态，media是medium的复数形式。故A为答案。
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