潜油电泵的供电流程为:地面电源一变压器一潜油电缆一潜油电动机。
参考答案:错
解析:潜油电泵的供电流程为:地面电源一变压器一控制屏一潜油电缆一潜油电动机。
根尖具有保护功能的部位在( )
A.分生区
B.成熟区
C.根冠
D.伸长区
A. You must have wronged me. B. Oh! I’m so sorry about this. C. Please stop just a second. D. Are you Mr Smith E. But may I ask you something first F. Is there anything I can do for you G. Now,sit down please. A: Excuse me. (16) B.Yes. You don’t know me,of course. I don’t teach here. I just give oral examinationshere now and then. Don’t be nervous. A:Nervous Who Me B: (17) I’m going to ask you a few questions. Then we are going to have a short con-versation in English. Do you understand A:Yes,of course I do. (18) B:After the examination,please. First of all,why are you learning English A:Why am I learning English B:Yes,I mean,what are you going to do with it Are you going to be a teacher of English, or what else A: (19) I really must ask you something first. B:Very well. If you insist,go ahead please! A:Would you like a cup of coffee B:Pardon What did you say A:You see,I’m English. I’m one of the teachers here. I came to ask you if you would like a cup of coffee. B: (20) .And thank you so much!