脑脊液中IgA增高主要见于（）
A.病毒性脑炎
B.化脓性脑膜炎
C.脑肿瘤
D.多发性硬化症
E.蛛网膜下隙出血
参考答案：B
It is said that ____ wool produced in Australia is of ____ high quality.
A．/ ; /
B．the ; /
C．the ; a
D．the ; the
