请看图，将对话补充完整。1. — What are you doing?— I'_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题补全对话，情景问答

请看图，将对话补充完整。

1.	— What are you doing? — I'm ______________________.
2.	— What are you doing? — ___________________________.
3.	— What are you _______________? — ___________________________.
4.	— What ______________________? — ___________________________.
5.	— ___________________________? — ___________________________.

答案

1. writing a letter

2. I'm cooking

3. doing, I am washing the clothes

4. are you doing, I am cleaning the room

5. What are you doing, I am playing football

答案不唯一

解答题

=1的顶点为焦点，且一条渐近线的倾斜角为

的双曲线方程．

单项选择题

既属于双方法律行为，又属于单务法律行为的是( )。

A．遗赠

B．遗赠扶养协议

C．赠与合同

D．单方允诺