Which of the following is released into the air when a cow farts?
举一反三
- Which of the following is not mentioned as a circumstance under which endorphins may be released?
- Would you buy a car that released calming smells into the air when you are stuck in heavy traffic? (VOA)
- Which of following functions is not one of the functions of air conditioner?（）
- Which of the following may lead to the engine NOT to start on air?（）
- For Prime Air drone, which of the following statement is true?