薄束的纤维来自于（）
A.薄束核
B.楔束核
C.脊髓后角固有核
D.三叉神经节
E.脊神经节
参考答案：E
It really seemed ages _____ the police came on the scene and cleared away the damaged cars. [ ]
A. before
B. after
C. when
D. as
1926年，北伐军总司令部进入长沙，而苏联军事顾问是谁？
