Given the set M={x∈N|x²-1=0}, then there is
Pick one
Solution
Solution: From the set M={x∈N|x²-1=0}={1}, we know:
In A, {1}⊆M, so A is incorrect;
In B, -1∉M, so B is incorrect;
In C, {-1,1}⊇M, so C is incorrect;
In D, {-1,0,1}∩M={1}, so D is correct.
Therefore, the answer is: .
By finding the set M={x∈N|x²-1=0}={1}, we can find the result. This problem tests the judgment of the truth and falsehood of complex sentences, tests the basic knowledge of the relationship between elements and sets, the relationship between sets and sets, and tests the ability to solve operations. It is a basic problem.
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