题目6单选题
"5421"BCD码<img src="https://tihai-oss-cloud.itihey.com/img/a260b44495dbadb98e4daa47001d1f9d.png">可表示为十进制数( )A. <img src="https://tihai-oss-cloud.itihey.com/img/2337e5ca98009f16f821687b1eaf9566.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/5248c40a809c192c7611b0b74e3ec667.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/ff9d1b6d2657616c37e71c15fd5f91c7.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/58a9111b0d983e280c4878a9bdea210f.png">