设全集U = R,集合M =" {" x | x>0},N =" {" x | x2≥x};则下列关系中正确的是
A M∩N ∈M B M∪N =" M " C M∪N =" R " D(CU M)∩N = Φ
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设全集U = R,集合M =" {" x | x>0},N =" {" x | x2≥x};则下列关系中正确的是
A M∩N ∈M B M∪N =" M " C M∪N =" R " D(CU M)∩N = Φ