初级

单选题How long does it take TapStore to extract a file from a tape?

参考答案：B进入在线模考
本题意为：录音系统从录音带中提取信息需要多长时间；此题与上题类似，都是信息定位题，应从第一遍快速通读时就找出相应数字。故选B。

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