GBS典型的脑脊液改变是蛋白质含量正常，而细胞数增高，称为蛋白-细胞分离现象，为本病特点之一。
参考答案：错
She can sing ______________ I. [ ]
A. as good as
B. as better as
C. as best as
D. as well as
以下哪种腺体是淋巴免疫器官（）
A.甲状腺
B.性腺
C.垂体
D.肾上腺
E.胸腺
