A.300米計(jì)時(shí)跑 B.150米計(jì)時(shí)跑 C.200米計(jì)時(shí)跑 D.60米計(jì)時(shí)跑
A.基礎(chǔ)訓(xùn)練 B.最佳競(jìng)技 C.專項(xiàng)提高 D.競(jìng)技保持
A.7-10 B.11-13 C.14-17 D.18-21