Q: What was the geometry student looking for at the beach?4 [% z4 f* l# {6 ?$ c% V
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+ F! q I: M) b Ktangent ; v8 `' i. y1 E' [4 ?9 E noun - ?6 r6 a0 Y ]! U$ k- t2 | (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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