肌力训练的原则包括()
A.抗阻力原则
B.超常负荷原则
C.肌肉收缩的疲劳度原则
D.防止肌肉疼痛原则
E.负荷量递增原则
参考答案:A, B, C
They received demands that the work ________ at once.
A.must be done
B.would be done
C.had been done
D.be done
肩胛骨的下角平对的部位是()
A.第2肋
B.第3肋
C.第7肋
D.第8肋
E.第9肋