设a,b,c为实数,.
记集合S=若cardS,cardT分别为集合元素S,
T的元素个数,则下列结论不可能的是( )
(A)cardS=1, cardT=0 (B)cardS=1, cardT=1
(C)cardS=2, cardT=2 (D cardS="2," cardT=3
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设a,b,c为实数,.
记集合S=若cardS,cardT分别为集合元素S,
T的元素个数,则下列结论不可能的是( )
(A)cardS=1, cardT=0 (B)cardS=1, cardT=1
(C)cardS=2, cardT=2 (D cardS="2," cardT=3