男,56岁,骶部持续性疼痛,夜间加重,结合图像,最可能的诊断是()
A.脊索瘤
B.骨转移瘤
C.骨肉瘤
D.多发性骨髓瘤
E.骨巨细胞瘤
参考答案:B
下列关于基底神经节运动调节功能的叙述,错误的是()
A.发动随意运动
B.调节肌紧张
C.处理本体感觉传入信息
D.参与运动的设计
E.以上均不对
A new coil of nylon line should be opened by().
A.pulling the end up through the eye of the coil
B.taking a strain on both ends
C.uncoiling from the outside with the coil standing on end
D.unreeling from a spool