从传声器输出端测得的交流阻抗定义为传声器的______。
参考答案:输出阻抗
After ________ my room, I with Li Lei and Li Xiang ________ to an aquarium. [ ]
A. finished doing, go
B. finishing cleaning, went
C. finished cleaning, went
D. finishing cleaning, go
股骨干上1/3骨折后,骨折近端骨折段因肌肉收缩牵拉其移位方向为
A.屈曲,外展
B.内收
C.向外成角
D.向后成角
E.过伸,内收