A:H2b﹣8+mXOb
B:H2b﹣m+8XOb
C:H2b﹣8﹣mXOb
D:H2b+8+mXOb
铁棍很难被拉伸,说明分子间存在____,水很难被压缩,说明分子间存在____(均选填“引力”、“斥力”)
- Can you tell me some about the Brazil Olympic Games?
- OK. Let me help you search the Internet.