潜油电泵井改双管生产流程为单管生产流程时,即在正常生产流程状态下()计量间掺水阀,同时关闭计量间双管出油阀。
A、关闭
B、打开
C、小闭
D、大开
参考答案:B
治疗肾阴虚型带下病的最佳方剂是()
A.知柏地黄汤
B.内补丸
C.六味地黄丸
D.左归丸
E.左归饮
用所给词的适当形式填空。
1. May I have some _____ milk? (much)
2. He is my _____ friend. (good)
3. How _____ does he know his friends? (good)
4. He enjoys _____ toys with other children. (share)
5. Are you going to join a _____ competition? (write)
6. The boy looks _____. (fun)
7. John is a _____ young man. (help)
8. We should be _____ to each other. (friend)
9. The present made me _____. (happily)
10. His voice sounds _____. (music)