骨骼肌纤维收缩的结果是()
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骨骼肌纤维收缩的结果是()
A.I带变窄,A带和H带不变
B.I带、A带和H带变窄
C.I带变窄,A带不变,H带变窄或消失
D.I带和A带变窄,H带不变
E.I带不变,A带和H带变窄
参考答案:
骨骼肌纤维收缩的结果是()
A.I带变窄,A带和H带不变
B.I带、A带和H带变窄
C.I带变窄,A带不变,H带变窄或消失
D.I带和A带变窄,H带不变
E.I带不变,A带和H带变窄
参考答案: