二进制数1111011111转换成十进制数为( )。A．990 B．899 C．9

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问题单项选择题

二进制数1111011111转换成十进制数为( )。

A．990

B．899

C．995

D．991

答案

参考答案：D

解析：按相应方法转换成十进制数后的结果是991。故本题答案选择D。

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