作为血红蛋白的主要成分的微量元素
A．铁B．锰C．钴D．硒E．铅
参考答案：A
- Excuse me, do you have any comic books?
- Sorry, I don't have_______. Ask Rose. I think she has.
A．some; some
B．any; any
C．some; any
D．any; some
什么是岩石的脆性？
