颗粒性室管膜炎
参考答案:
当脑积水、感染或造影化学试剂刺激等情况下室管膜细胞可局灶性脱失,继而发生室管膜下星形胶质细胞增生,形成小颗粒突向脑室,称颗粒性室管膜炎。
用所给词的适当形式填空。
1. — How many teachers are there in your school?
— About 200. One third of them _____ (be) men teachers.
2. I'm sorry to keep you _____ (wait) for so long.
3. — What are you going to do, Tom?
— I'm going to get my computer _____ (mend)
4. The Yangtze River is the third _____ (long) river in the world.
5. I'm looking forward to _____ (take) holiday in Hainan.
体外震波碎石机是
A.一类医疗器械B.二类医疗器械C.三类医疗器械D.试产品E.准产品