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【題目】_______可表示“激光唱片”。

A. HB B. CD C. BBC D. NBA

【答案】B

【解析】句意：CD可表示“激光唱片”。HB硬黑筆芯；CD激光唱片；BBC英國廣播公司；NBA美國籃球協(xié)會。故選B。

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