已知命题p:∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,则綈p是( )
A.∃x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0 |
B.∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0 |
C.∃x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0 |
D.∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0 |
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已知命题p:∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,则綈p是( )
A.∃x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0 |
B.∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0 |
C.∃x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0 |
D.∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0 |
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