【判断题】如果企业领用低值易耗品的金额较小,可以在领用时一次计入成本费用中。 ( )
【单选题】In a sand-casting mould, the‘core’is ( )
A.
a inset made from sand
B.
to form interior surfaces of the casting
【单选题】The pump(casting /casing) should be dismounted
【多选题】What's the advantages of casting ?
A.
Parts with intricate internal cavities /passage
B.
Parts with smooth ,flowing designs
C.
the economy of using less metal for a part
D.
Casting process is complex
【单选题】Defect of cavities in casting is caused by: ( )
B.
poor casting sand quality
【单选题】在中国外文局成立70周年之际,习主席向()致诚挚问候。
【单选题】Defect of cavities in casting is caused by: ( )
C.
poor casting sand quality
【多选题】What's the disadvantages of casting ?
A.
shrinkage cavity, Porosity
C.
position deviation,shape incompletion
D.
The surface of the casting is rough, adhering to a layer that is difficult to remove the sand.