问题
问答题 简答题
写出电潜泵抽油工作流程。
答案
参考答案：
电潜泵抽油工作流程为：
井下液体→泵吸入口→分离器→多级离心泵→单流阀→泄油阀→油管→井口→出油流程。
搜题请搜索小程序“爱下问搜题”
写出电潜泵抽油工作流程。
参考答案：
电潜泵抽油工作流程为：
井下液体→泵吸入口→分离器→多级离心泵→单流阀→泄油阀→油管→井口→出油流程。
| 完形填空 | |||
| Mr and Mrs Moore were invited to a Christmas party at a hotel one year. They _ 1 _ their car outside and went in. Mr Moore had never got drunk before, so he was 2 not to drink too much, though his friends asked him to drink more 3 . During the party, Mrs Moore found that she 4 to bring her bag, so she asked her husband to go out to the car and 5 it for her. He did so, but 6 his way back to the hotel gate, he heard a car horn (喇叭) blowing near his own car. He thought someone might be in need of help and went over to the car with the 7 .He found a small black bear _ 8 in the driving-seat and blowing the horn. | |||
| ( )1. A. pulled ( )2. A. polite ( )3. A. all along ( )4. A. had remember ( )5. A. buy ( )6. A. at ( )7. A. noise ( )8. A. to sit | B. stayed B. careful B. once again B. remembered B. get B. in B. voice B. sit | C. left C. glad C. just then C. had forgotten C. send C. on C. cry C. sitting | D. hid D. afraid D. for ever D. forgot D. return D. by D. shout D. sits |