看图片，回答问题。1. What are you doing?I ________爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题猜谜题，问答题

看图片，回答问题。

1.	What are you doing? I _____________________________________
2.	What's the boy doing? He _____________________________________
3.	What are they doing? They _____________________________________
4.	Are they singing? __________________________________________
5.	What's your father doing? __________________________________________

答案

1. am watching TV.

2. is flying a kite.

3. are swimming.

4. No, they aren't.

5. He is reading a book.

答案不唯一

单项选择题

制图综合中的概括不包括（）。

A.形状概括

B.点状要素的概括

C.数量特征概括

D.质量特征概括

填空题

用来测定发动机输出功率的仪器叫做（）。