单项选择题
A.8 B.10 C.12 D.16
A.(unsigned)z<(unsigned)x B.z==0 C.z<0 D.(x<0==y<0)&&(z<0!=x<0)
A.进位标志 B.零标志 C.符号标志 D.溢出标志
A.0 B.-1 C.-2 D.1
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