买家、卖家和_________是C2C电子商务模式的基本要素。
参考答案：电子交易平台供应商（或交易平台）
单词拼写。
1. Bill was a ____ to his friend for having kept her waiting for a long time.
2.The girls all ____ up to take part in the evening party.
3. The lazy bird had nothing in store for the winter, so he had to s_____.
4.The boy had been ____ ( 淹)to death before the adults came to save him.
5. He got a lot of ____ ( 奖状)for his excellent study.
谈判人员的内部管理包括哪些内容？
