运动神经元病是一组病因为未明的选择性侵犯
A.锥体束
B.脊髓侧角细胞
C.脊髓前角细胞
D.皮质锥体细胞
E.脑干后组运动神经元
参考答案:A,C,D,E
风邪致病,可出现
A.咳嗽咽痒
B.头痛汗出
C.肢体麻木
D.四肢抽搐
The self-contained breathing device should not be used in which situation?()
A.Oxygen deficient spaces
B.Compartments containing poisonous vapors
C.Fighting fires that produce heavy smoke
D.Underwater search