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
France has reported a second case of a new type of virus infection. The virus is similar to ______ that caused SARS, a breathing disease that killed 775 people in 2003.
A.ones
B.those
C.one
D.the one
天然纤维纺织面料包括:()()()和()四种