哪项不是决定肌力大小的因素
A.收缩速度B.肌肉初长度C.收缩的持续时间D.肌肉收缩的类型E.肌肉的横截面积
参考答案:C
He felt curious that he asked many questions about it.
A.such , such
B.so , so
C.such , so
D.so , such
五肽交联桥(革兰阳性菌特有)