A.股二頭肌可使膝關(guān)節(jié)伸 B.股二頭肌可使髖關(guān)節(jié)屈 C.伸展股二頭肌應(yīng)使膝關(guān)節(jié)屈和髖關(guān)節(jié)伸 D.伸展股二頭肌應(yīng)使膝關(guān)節(jié)伸和髖關(guān)節(jié)屈
A.斜方肌 B.背闊肌 C.胸大肌 D.肱三頭肌
A.20% B.30% C.32% D.35%