问题
多项选择题
井控设备主要有哪些设备组成（）
A、以防喷器为主体的井口装置，又称防喷器组合
B、液压防喷器控制系统
C、以节流、压井管汇为主的井控管汇。
D、管柱内防喷工具
E、钻具
F、修井液加重、除气、灌注设备
G、钻头
答案
参考答案：A, B, C, D, F
搜题请搜索小程序“爱下问搜题”
井控设备主要有哪些设备组成（）
A、以防喷器为主体的井口装置，又称防喷器组合
B、液压防喷器控制系统
C、以节流、压井管汇为主的井控管汇。
D、管柱内防喷工具
E、钻具
F、修井液加重、除气、灌注设备
G、钻头
参考答案：A, B, C, D, F
I went to a group activity, “Sensitivity Sunday”， which was to make us more ___ the problems faced by disabled people. We were asked to “ ____ a disability” for several hours one Sunday. Some members，____ chose to use wheelchairs. Others wore soundblocking earplugs(耳塞)or blindfolds(眼罩)． Just sitting in the wheelchair was a ___ experience. I had never considered before how ____ it would be to use one. As soon as I sat down, my ____ made the chair begin to roll. Its wheels were not ____. Then I wondered where to put my ____. It took me quite a while to get the metal footrest into ____. I took my first uneasy look at what was to be my only means of ____ for several hours. For disabled people, “adopting a wheelchair” is not a temporary(临时的) ____. I tried to find a ____ position and thought it might be restful, ____ kind of nice, to be ____ around for a while. Looking around, I ____ I would have to handle the thing myself! My hands started to ache as I ___ the heavy metal wheels. I came to know that controlling the ____ of the wheelchair as not going to be a(n)____ task. My wheelchair experiment was soon ___. It made a deep impression on me. A few hours of “disability” gave me only a taste of the ____， both physical and mental, that disabled people must overcome.
|
