【多选题】EI工程索引数据库中,收录的文献类型有()。
【单选题】FX系列可编程序控制器中OUT指令为逻辑行设定一线圈,可以是()等
【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。
【单选题】全路基本列车运行图原则上每()编制一次,宜在春季或秋季实行。(客章)
【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?
【多选题】EI数据库中的索引有( )。
C.
作者单位索引(Author affiliation)
【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