Because common knowledge are common, so they are always right and can be supportive.
举一反三
- 下面哪些不是common knowledge?
- It is common knowledge that China has a ... traditional_______.
- Why is the man so depressed? A: Because he can't find an ideal date. B: Because he is too common a person. C: Because he has failed to realize his dreams. D: Because he is deceived by Mrs. Right.
- Knowledge that is patented is a A: public good, whereas knowledge that is not patented is a common resource. B: private good, whereas knowledge that is not patented is a club good. C: common resource, whereas knowledge that is not patented is a private good. D: club good, whereas knowledge that is not patented is a public good.
- Fads are common in the United States because ____