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250 250 3.79 500 500 750 O 750 1000m 1000m 7} 250 500 ......250 250 3.79 500 500 750 O 750 1000m 1000m 7} 250 500 750 O 1000m 15—30 ; 0 2.5 5 km C] t— N 250 O x-x 1 71 15kgCÿ0
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