问题
单项选择题
荆州明德ZJK流量自控仪智能控制系统供电部分采用以下哪种电压规格（）
A.AC220V
B.AC110V
C.DC24V
D.DC12V
答案
参考答案：C
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荆州明德ZJK流量自控仪智能控制系统供电部分采用以下哪种电压规格（）
A.AC220V
B.AC110V
C.DC24V
D.DC12V
参考答案：C
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| A little boy knocked on the door of the old house. He waited, and sweated from 1 of seeing the owner, who 2 ever came out. As he was ready to 3 , the door slowly opened. "What do you want?" the old man asked. "Uh, sir, I'm 4 magazines for school and I was 5 if you would like to buy 6 ." The old man onl  y 7 at the boy. Meanwhile, the boy saw many dog figurines(小雕像) inside the house. "Do you 8 dogs?" he asked. "Yes, I have many dog figurines in my house; they are all I have." The boy then felt sorry for the man, as it seemed he was very 9 . "Well, I do have a magazine here for collectors. It is 10 for you. I also have one about dogs since you…" The old man started to close the door, saying 11 , "No, boy. I don't need  any magazines of any kind. Now goodbye." The boy was 12 for the old man being so lonely. He went home and then had an 13 . He had a little dog figurine which didn't 14 much to him since he had a real live dog and a large family. The boy headed 15 . He knocked on the door again and this time the old man came right to the door. "Boy, I thought I told you no 16 ." "No, sir. I wa  nt to bring you a 17 ." The boy 18 him the figurine and the old man's face 19 . "Boy, you have a big heart. 20 are you doing this?" "I think it means more to you." From that day on, the old man started coming out and talking with neighbors. | ||||
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