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【判断题】
在有理数域上不可约。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】The best economic case one can make for an active industrial policy involves ___________.
A.
the national security argument.
B.
the technological spillover argument.
C.
the environment preservation argument.
D.
raising the national income.
【简答题】FX系列PLC中的OUT指令为逻辑行设定一线圈,可以是()等。
【简答题】联合拉拔机由 、 、 、 和 等部分组成。
【单选题】What has NOT been controlled at all as regards water pollution?
A.
Industrial polluters.
B.
Sewage.
C.
Rain runoff.
D.
Toxic substances.
【多选题】EI数据库中的索引有( )。
A.
作者索引（Author）
B.
出版者索引（Publisher）
C.
作者单位索引（Author affiliation）
D.
出版物索引（Source title）
【单选题】The best economic case one can make for an active industrial policy involves
A.
the national security argument.
B.
the technological spillover argument.
C.
the environment preservation argument.
D.
the high value added argument.
E.
raising the national income.
【单选题】Industrial psychology is the application of various psychological techniques to the se-lection and training of industrial workers and to the promotion of efficient working condi-tions and techniques, ...
A.
working efficiency that leads to the highest output
B.
the working skills and the working environment
C.
the techniques leading to the highest productivity
D.
the use of workers to get the greatest profit
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