试写出第1题中所示树的前序遍历、后序遍历和层次遍历的结果。
查看答案
交际英语Listen to eight short dialogues between a man and a woman, and choose the best answer to the question after each dialogue.1[音频]
A. The woman is the man’s mother.
B. The woman thinks the man is sick.
C. The man is not feeling well.
D. The man plays in the cold weather.
2[音频]
A. In a furniture store.
B. In a restaurant.
C. In a hospital.
D. In a hotel.
3[音频]
A. 28 dollars.
B. 56 dollars.
C. 14 dollars.
D. 42 dollars.
4[音频]
At home.
B. At school.
C. In the dorm.
D. In a TV shop.
微信支付 
支付宝支付