∵N={x|n-5 12≤x≤n}, and the "length" of ∴ set n is 5 12.

∵M and n are subsets of the set {x|0≤x≤ 1}.

∴m is at least 0, and n is at most 1. At this time, the "length" of the set M∩N is at least 16.

So choose C.