Most CAPTCHAs are in the form of visual verification of a bitmapped image, although alternative solutions such as audio and logic puzzles have also been exploited.是什么意思_Most CAPTCHAs are in the form of visual verification of a bitmapped image, although alternative solutions such as audio and logic puzzles have also been exploited.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句