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YY y1(0,0); YY y2(1); YY y3(0); YY y4;
46,XX(或X/47,+21 46,XX(或X,-21,+t(21q21 46,XX(或X,-22,+t(22q21 46,XX(或X,-14,+t(14q21 45 ?XX(或X,-14,-21,+t(14q21
[-4,+∞) (-2, +∞) [-4,1] (-2,1]
转字第XX号 收字第XX号 转字第XX1/2号和转字第XX2/2号 收字第XX1/2号和收字第XX2/2号
46,XY(或XX),-l3,+t(13q2lq) 46,XY(或XX),-l4,+t(14q2lq) 46,XY(或XX),–l5,+t(15q2lq) 46,XY(或XX),-21,+t(21q2lq) 46,XY(或XX),-22,+t(21q22q)
45,XX(或X,-14,-21,+t(14q21 46,XX(或X,-14,+t(14q21 47,XX(或X,+21 46,XX(或X,-21,+t21q 46,XX(或X,-22,-t(21q22
0属于S.,且0属于T 0属于S.,且0不属于T. 0不属于S.但0属于T 0不属于S.,也不属于T.
{1,2,3, 5} ф {0} {1,3,5,7, 11, 13, 17, 19}
46,XX(或X,-14,+t(14q21 46,XX(或X,-21,+t(21q21 46,XX(或X/47,XX(或X,+21 47,XX(或X,+21 46,XX(或X,-13,+t(13q21
x -7<x<-5 x 3<x<5 x -5<x<3 x -7<x<5
47,XX(X,+21 46,XX(X,-14,+t(14q;2l 45,XX(X,-14,-2l,+t(14q;2l 46,XX(X,-21,+t(2l 46,XX(X,-22,+t(2lq;22
47,XX(XY),+21 47,XX(XY),+21/46,XX(XY) 46,XX(XY),–l4,+t(14q2lq) 46,XX(XY),–21,+t(21q2lq) 46,XX(XY),–22,+t(21q22q)