![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
健美运动员在屈肘把哑铃举起的时候(如图),肱二头肌和肱三头肌的状态分别是()
A.肱二头肌收缩,肱三头肌舒张
B.肱二头肌舒张,肱三头肌收缩
C.肱二头肌和肱三头肌都舒张
D.肱二头肌和肱三头肌都收缩
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
A、肱二头肌收缩,肱三头肌舒张
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.肱二头肌收缩,肱三头肌舒张
B.肱二头肌舒张,肱三头肌收缩
C.肱二头肌和肱三头肌都舒张
D.肱二头肌和肱三头肌都收缩
A、肱二头肌收缩,肱三头肌舒张
哑铃弓步下蹲练习,运动环节向下运动时,描述正确的是()
A.骨盆后倾
B.小腿在膝关节处屈
C.小腿在踝关节处伸
D.小腿在踝关节处屈