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.

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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 根据题意。题干陈述的是一个客观事实，时态应该用现在时，所以排除[B]。又因为题干主语media是medium的复数形式，谓语应用复数．故答案为[A]。
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