结核性脑膜炎首选检查（）。
A.脑脊液检查
B.CT检查
C.MRI检查
D.超声检查
E.PPD试验
参考答案：A
单项式-2πab2的系数是______，次数是______．
____ in reading the novel , he knew nothing about what was going on about him.
A． Attracted
B．Drawn
C．Absorbed
D．Concentrated
