振动觉和位置觉传导通路的第二级神经元是（）
A.丘脑腹外侧核
B.后根神经节
C.延髓薄束核与楔束核
D.脊髓前角细胞
E.脊髓后角细胞
参考答案：C
My father is a teacher. _____ phone number is 546807. [ ]
A. He
B. She
C. His
D. Her
