汇合点（Meeting point）必须是（）知识才有用
举一反三
- Danzhong( CV 17 ) is:<br/>( ) A: The meeting point of qi B: The meeting point of bone C: The meeting point of marrow D: The meeting point of blood
- 中国大学MOOC: 飞机场Meeting Point就是一个“谢林点”。
- I left the meeting, there obviously ___ no point in staying.
- 中国大学MOOC: What is the point of meeting with the heads of delegations?
- 翼点是由（）汇合处