问题
名词解释
补充绝缘
答案
参考答案：
附加在基本绝缘上的独立绝缘，当基本绝缘失效时提供防触电保护。例如端子台外面的端子盒
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补充绝缘
参考答案：
附加在基本绝缘上的独立绝缘，当基本绝缘失效时提供防触电保护。例如端子台外面的端子盒
| Read and choose. 阅读短文，选择正确答案。 |
| John and Tom are hungry. They want a snack. A snack is little food to eat. "Who is hungry?" asks Mrs. Zhang. "We are hungry!" say John and Tom. "Would you like a snack?" asks Mrs. Zhang. "Yes, please!" say John and Tom. "No, thanks, Mrs. Zhang." Lucy says. "I am not hungry." "I am hungry." says Tom, "but I don't know what I want to eat!" "Would you like some noodles, Tom?" asks Mrs. Zhang. "No, thank you." says Tom. "I don't like noodles. May I have some soup, please?" "Sure!" says Mrs. Zhang. "What would you like, John?" "I would like an orange, please, mum. " says John. "OK, I have apples, oranges and grapes." says Mrs. Zhang. |
| 1. Who is hungry? |
[ ] |
| A. Tom. B. John C. Both Tom and John. |
| 2. Who wants to have some soup? |
[ ] |
| A. John. B. Mrs. Zhang. C. Tom. |
| 3. What does John would like? |
[ ] |
| A. Some noodles. B. An orange. C. Some soup. |
| 4. Who is Mrs. Zhang? |
[ ] |
| A. John's mother. B. Tom's mother. C. Lucy's mother. |
| 5. Who is not hungry? |
[ ] |
| A. Tom. B. John. C. Lucy. |
| 6. Does Tom like some noodles? |
[ ] |
| A. Yes, he is. B. No, he doesn't like noodles. C. Thank you. |