问题
判断题
中间继电器线圈额定电压只有220V一种。
答案
参考答案：错
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中间继电器线圈额定电压只有220V一种。
参考答案：错
| 阅读理解。 |
| You may never be in an emergency situation (紧急情况). But if it happens, you should know how to get help. The telephone book in the United States has emergency numbers on the inside front cover. Look at the following table from the Boston telephone book. Notice that the numbers for the police and the fire department (消防处) are the same. And it is an easy number to remember. If you are too unhappy or excited to remember any numbers at all, you can simply dial (拨打) "0" for an operator (接线员) in any emergency situation.  |
| 1. What number do you dial if you see a fire in Brookline? |
[ ] |
| A. 911 B. 876-5800 C. 482-5252 D. 223-6978 |
| 2. What number do you dial if you see a boat sinking? |
[ ] |
| A. 911 B. 023-1500 C. 223-6978 D. 625-4774 |
| 3. What number do you dial if you live in Boston and you need a doctor? |
[ ] |
| A. 911 B. 025-4784 C. 025-4774 D. 482-5252 |
| 4. If you have to get to the hospital quickly, you should call ______. |
[ ] |
| A. the doctor B. an ambulance C. the police D. the fire department |
| 5. Who will answer your call if you dial "0"? |
[ ] |
| A. The police. B. The doctor. C. The fire department. D. The operator. |