以下属于重量分析法的是()
A.氧化还原滴定法
B.碘量法
C.置换滴定法
D.萃取法
E.非水溶液滴定法
参考答案:D
解析:重量分析法分为:挥发法、萃取法和沉淀法等。
句型转换。
1. We are in Beijing. (就划线部分提问)
_____ _____ we?
2. Can you bring the ruler to me? (作出否定回答)
No, _____ _____.
3. I draw pictures on the wall. (变为否定句)
I _____ _____ pictures on the wall.
4. We have two new students in our class. (变为同义句)
_____ _____ two new students in our class.
5. There's an English book in the desk. (变为复数句)
_____ _____ English _____ in the desks.
排除继发性癫痫应首选的检查是()
A.腰椎穿刺
B.经颅多普勒
C.颅脑CT或MRI
D.颅骨摄片
E.脑电图