哪种疾病CSF的pH下降最为明显（）。
A.病毒性脑炎
B.结核性脑膜炎
C.乙型脑炎
D.化脓性脑膜炎
E.脑水肿
参考答案：D
开放作文。
请根据下面提示，写一篇短文。词数不少于50。
In your spoken English class, your teacher shows you the following picture. You are asked to describe
the picture and explain how you understand it.
__________________________________________________________________________________
_____________________________________________________________________________________
净投资与资本消耗折旧相等，意味着资本品存量保持不变。（）
