病毒性脑膜炎确诊的依据是（）
A.脑膜刺激征
B.CSF病原性检查
C.脑脊液压力增高
D.CSF细胞轻中度增高
E.血白细胞计数不高
参考答案：B
Dave often _____ basketball after school. [ ]
A. played
B. are playing
C. plays
D. will play
功能固着是影响解决问题的因素之一。（ ）
