题目内容：
在一个非零无符号二进制整数之后添加一个0，则此数的值为原数的（ ）。
A．4倍 B．2倍
C．1／2倍
D．1／4倍
参考答案：
答案解析：
单选题：在一个非零无符号二进制整数之后添加一个0，则此数的值为原数的（ ）。
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B．2倍
C．1／2倍
D．1／4倍
B．2倍
C．1／2倍
D．1／4倍
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