梁的应力~应变阶段()
参考答案:基本按照直线分布
I agree with most of what you said, but I don’t agree with ______? [ ]
A. something
B. anything
C. nothing
D. everything
心肌纤维呈()状,有(),多数细胞有()个细胞核,相邻心肌纤维间互相连接处形成()。