A.運(yùn)動(dòng)強(qiáng)度、密度和持續(xù)時(shí)間 B.運(yùn)動(dòng)強(qiáng)度、速度和持續(xù)時(shí)間 C.運(yùn)動(dòng)強(qiáng)度、耐力和持續(xù)時(shí)間 D.運(yùn)動(dòng)強(qiáng)度、節(jié)奏和持續(xù)時(shí)間
A.2.0-2.5 B.2.5-3.0 C.3.0-3.5 D.3.5-4.0
A.皮膚 B.肺 C.皮膚和肺 D.皮膚或肺