Continuous training is the practice of continuously running over the （）, below the speed of the race, and at a constant or variable speed
A. the distance of the race
B. maximum strength
C. maximum speed
D. Competition atmosphere
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Interval training method refers to the repeated training in a certain group of a certain distance, there is a specific______ between the two exercises.
安装4×110mm轮子的架子长度为的为______ 英寸，孔距为______
安装4×100mm轮子的架子长度为的为______ 、______ 、______ ，孔距为______
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