单项选择题
A.125B.0x7EC.0x6CD.126
A.XXXX XXXX^00101010B.XXXX XXXXv 00101010C.XXXX XXXX⊕00101010D.XXXX XXXX&00101010
A.1497.75,10111011001.11B.1497.75,10111011001.01C.1497.55,10111001001.11D.1497.55,10111011001.01
A.714,0x2CAB.713,0x2C9C.715,0x2CBD.716,0x2C9
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