两等直径圆柱轴线正交相贯,其相贯线是()
A.空间曲线
B.椭圆
C.直线
参考答案:B
The research lacks ________ evidence, and therefore, its conclusions are doubtful.[ ]
A. solid
B. fierce
C. severe
D. potential
手法复位肩关节脱位成功后应将患肢固定于()
A.外展,外旋位,曲肘90°
B.外展,外旋位,曲肘135°
C.外展,内旋位,曲肘90°
D.内收,内旋位,曲肘135°
E.内收,内旋位,曲肘90°