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【单选题】
设有无G=(V,E)和G'=(V',E'),如G'为G的生成树,则下面不正确的说法是( )A.
G’为G的子图
B.
G’为G的强连通分量
C.
G’为G的极小连通子图且V’=V
D.
G’是G的无环子图
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【判断题】With a vast group of supporting characters, virtuous or villainous, Cooper made the American conscious of his past, and made the European conscious of America.
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