Q: What was the geometry student looking for at the beach? + g4 i) F/ T, c; L 6 _ _0 I1 y% k& c* ]$ {A: A tangent. m' ~% c7 g2 ]$ d; z* \2 J
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(geometry) a straight line that touches the outside of a curve but does not cross it
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发表于 2009-4-8 12:18
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