题目内容
The hole spacing of 30-32 yards for speed skating is:______ The hole spacing for speed skating in 33-37 yards is:______ The hole spacing of speed skating shoes in 38-45 yards is:______
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Install 4 x 90 mm wheel frame length is______ inches, pitch is ______ mm
Measure the actual______ and ______ of the foot before choosing a speed skate.
When measuring foot length, find out a piece of white paper, tiled on the ground, then use a foot to draw out the outline of the whole foot with a pen, the length and width of the smooth outline can be measured with the hand finally
Speed roller skates are athletic shoes, not equipment
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