What is the key to financial success according to the author?
举一反三
- 【单选题】According to Rich DoVos, the author of the text, what is the relationship between optimism and success?
- According to the author, what is a friend?
- 中国大学MOOC: What is the key to success as a writer of instructions?
- According to the author, what is the “rule of thumb”?
- According to the author, what was understood as a norm?