正确抄写下列字母, 每组抄两遍。
①E ____ ____ ②F ____ ____
③e ____ ____ ④f ____ ____
“知彼知己,百战不殆”这与下列哪位古代军事家有关( )
- How long does it take to get to the airport?
- Forty minutes. But it's foggy today. I'm not sure _________ the highway will be closed soon. Let's set off earlier.
哺乳动物运动系统的组成是( )