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搜题
【多选题】
旋转(复合钻进)条件下,滑动导向钻井系统可以实现( )钻井作业。
A.
B.
微降
C.
稳斜
D.
扭方位
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举一反三
【单选题】工程造价咨询企业资质等级可分为( )。
A.
甲级和乙级
B.
甲级、乙级和丙级
C.
甲级、乙级和暂定级
D.
甲级、乙级、丙级和丁级
【单选题】Return sample can also be called ( ).
A.
sealed sample
B.
counter sample
C.
duplicate sample
D.
reference sample
【简答题】A.The survey received a low rate of return. B.The sample selected was not representative. C.The questionnaires were too difficult. D.The results of the survey were against the public opinion.
【多选题】Sale by sample can be classified into categories including ( ).
A.
sale by seller's sample
B.
sale by buyer's sample
C.
sale by counter sample
D.
sale by reference sample
【简答题】ALE是什么?
【判断题】工程造价咨询企业资质等级分为甲级、乙级和丙级。
A.
正确
B.
错误
【简答题】ALE是 信号。
【判断题】相干解调要求本地载波与发送载波同频,但不要求同相。
A.
正确
B.
错误
【判断题】ALE是程序存储器的取指信号。(    )
A.
正确
B.
错误
【简答题】(填空)对于共阴接法的发光二极管数码显示器,应采用 电平驱动的七段显示译码器。