如图所示，力所产生的作用效果使物体发生形变的是：[ ] A. B. C. D.
题型：多选题
问题：
如图所示，力所产生的作用效果使物体发生形变的是：[ ]
A.
B.
C.
D.
题型：多选题
| 阅读下列对话，回答问题。 |
| Man: Hello! John: Hello! Can I speak to Chen Jie, please ? Man: Sure. please hold on. She's doing homework. Chen: Hello! John: Hi. This is John. Chen: Hi, John. What are you doing ? John: My family is having a field trip. Chen: Really ? That's fun. What is your father doing ? John: Guess. Chen: Is he taking pictures ? John: Yes, he is. Chen: Is your mother listening to music ? John: No, she isn't. she's playing chess. Chen: What's your brother doing ? John: He's having a picnic. Chen: Have fun. John: Thank you. See you later. chen: Bye Example: Who wants to speak to Chen Jie ? John Questions : 1. What's Chen Jie doing ? 2. Is John's father taking pictures ? 3. What's John's mother doing ? 4. Who is having a picnic ? 5. Do they have fun ? |   |