单项选择题
A.2+4>8 B.3+12=15 C.5>0 And 4>3 D.10/5<3
A.8ad B.ad C._ad D.const
A.A=B;B=C;C=A B.C=A;A=B;B=C C.A=B;B=A D.C=A;B=A;B=C
A.A、D B.A、C C.C、B D.B、A
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