直流电动机的调速方法有调压调速、串电阻调速和()三种。
参考答案:弱磁调速
— Beg your pardon, but I didn't follow you.
— Oh, I ____ myself. [ ]
A. would talk to
B. talked to
C. had talked to
D. was talking to
男,73岁,乘车急刹车时摔倒,左桡骨Colles骨折明显移位。关于该病例的讨论不正确的是()
A.查体时能见银叉样畸形
B.骨折断端血肿越大对膜内化骨越有利,骨折愈合速度越快
C.手法复位最好在局麻下完成
D.整复时应将患腕固定在掌屈尺偏的位置
E.整复后可用石膏托或小夹板固定