借大师在楼下问六种跳跃中，哪种最难？

按照国际冰联(ISU)的最新计分系统对于不同的跳跃的分数高低，
我们应该可以有一个基本的判断标准。

难易程度依次应该是 Toe, Salchow, Loop, Flip. Lutz, Axel

以下是从ISU的 RULE BOOK 上摘下来的。
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Rule 322 (section-f)

Scale of Values of Figure Skating Elelments (Singles)

Jump (Note As) Base Score
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Toe Loop (1T) 0.4
Salchow (1S) 0.4
Loop (1Lo) 0.5
Flip (1F) 0.5
Lutz (1Lz) 0.6

Axel (1A) 0.8
Double-Toe Loop (2T) 1.3
Double-Salchow (2S) 1.3
Double-Loop (2Lo) 1.5
Double-Flip (2F) 1.7
Double-Lutz (2Lz) 1.9

Double-Axel (2A) 3.3
Triple-Toe Loop (3T) 4.0
Triple-Salchow (3S) 4.5
Triple-Loop (3Lo) 5.0
Triple-Flip (3F) 5.5
Triple-Lutz (3Lz) 6.0

Triple-Axel (3A) 7.5
Quad-Toe Loop (4T) 9.0
Quad-Salchow (4S) 9.5
Quad-Loop (4Lo) 10
Quad-Flip (4F) 10.5
Quad-Lutz (4Lz) 11
Quad-Axel (4A) 13