（）不属于联锁回路中的检测元件范畴。
A、DO卡
B、AI卡
C、液位计
D、压力变送器
参考答案：A
第三节：阅读理解（共20小题，每题2.5分，满分50分）
阅读下列短文，从每题所给的四个选项中，选出最佳答案
A couple of years ago, I received a $ 600 insurance dividend (保险股息).Sitting at the kitchen table, my wife and I discussed what we might do with the money. I realized now that the refrigerator overheard our talk. The very next day it went wrong. The repairman told us we needed a new unit. Cost:$600. Not long after that, we got a refund（赔偿金）from the shop, enough to pay for a trip to Mexico. “I’ve something to tell you,” I said to my wife in a low voice. “How about the living-room?” she suggested. I remembered the color TV set was there. “No, not there. Let’s go out.” I showed her the check as we stood on the driveway. We held each other excitedly and hardly noticed the rain. My car was parked within5 meters. I didn’t think anything about it at the time. As I started for the airport the next day, the car began making strange sounds. Changing the engine cost about $ 1, 000.
Then I looked through our financial records. I discovered that during the last ten years we spent all our “found money” repairing a hot water heater, a television and a stove.
I never mention money in front of our mechanical equipment. But if this article is published and I am paid for, the word processor（文字信息处理机）is going to go for sure. It’ll know.
1. What went wrong first as the writer’s?
A. The refrigerator B. The stove
C. The TV set D. The engine of the car
2. What has been repaired and still remains all right?
A. The car B. The color TV set
C. The stove D. The hot water heater
3. Which statement is wrong according to the passage?
A.There are many pieces of modern equipment in the writer’s home
B.The writer often discusses with his wife on how to spend their money.
C.The writer has gone into a lot of trouble to repair his things
D.The writer’s refrigerator can overhear him
When 9 students took a zoology quiz with a possible score of 0 to 10 inclusive, their average (arithmetic mean) score was 7.5. If a tenth student takes the same quiz, what will be the least possible average score on the quiz for all 10 students
A. 6.5 B. 6.75 C. 7.0D. 7.25 E. 7.5
hat the refrigerator overheard our talk. The very next day it went wrong. The repairman told us we needed a new unit. Cost:$600. Not long after that, we got a refund（赔偿金）from the shop, enough to pay for a trip to Mexico. “I’ve something to tell you,” I said to my wife in a low voice. “How about the living-room?” she suggested. I remembered the color TV set was there. “No, not there. Let’s go out.” I showed her the check as we stood on the driveway. We held each other excitedly and hardly noticed the rain. My car was parked within5 meters. I didn’t think anything about it at the time. As I started for the airport the next day, the car began making strange sounds. Changing the engine cost about $ 1, 000.
s published and I am paid for, the word processor（文字信息处理机）is going to go for sure. It’ll know. 
n equipment in the writer’s home