單項選擇題

某網(wǎng)站禁止百度蜘蛛索引所有網(wǎng)頁,以下robots.txt文件正確的是:()

A.{User-agent:BaiduspiderDisallow:}
B.{User-agent:BaiduspiderAllow:*}
C.{User-agent:BaiduspiderAllow:/}
D.{User-agent:BaiduspiderDisallow:/}

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