编写要求:
www.gszx.com.cn网解答:
A:=C<O; B:=C>O; XG:REF(B,4) AND REF(EVERY(A,3),1) AND B;
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编写要求:
www.gszx.com.cn网解答:
A:=C<O;
B:=C>O;
XG:REF(B,4) AND REF(EVERY(A,3),1) AND B;