坐骨神经损伤后的表现()
A.小腿和足部的肌肉全部麻痹,不能屈膝
B.臀部的皮肤感觉消失
C.股后区皮肤感觉消失
D.出现“钩状足”畸形
E.呈现下垂、稍外翻、足趾屈曲畸形
参考答案:A
When the young man came back, tired, he just forgot to turn on the radio and ________ missed
the program.[ ]
A. anyhow
B. thus
C. however
D. somewhat
简述接触网的发展趋势?