单项选择题
A.x=y=z=1 B.x=(y=z+1) C.x,y=y,x D.X+=y
A.a=2 b=2 a=b B.3>2>1 C.True and False D.2!=2
A.int B.char C.float D.dictionary
A.user-Passwd B.if C._name D.setup.exe
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