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【单选题】
It is the teacher _____taught me when I was a child _____ I'm going to visit. [ ]A.
that, which
B.
who, that
C.
who, which
D.
whom, that
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【多选题】What are important in the design of ejector system of injection mold? ( )
A.
the required layout of the mold's parting surfaces.
B.
the detailed design of the various components required to eject the molding.
【多选题】The ejector system design is determined by ( ).
A.
the required layout of the mold's parting surfaces.
B.
the detailed design of the various components required to eject the molding.
【单选题】Which of the following does not relate to system design?
A.
altering the system capacity
B.
location of facilities
C.
inventory management
D.
selection and acquisition of equipment
E.
physical arrangement of departments
【单选题】设事件A,B相互独立,且P(A)>0,P(B)>0,则( )一定成立。
A.
P( A | B )=1-P(A)
B.
P(A|B)=0
C.
P(A)=1-P(B)
D.
P(A|B)=P(B)
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