冲床是下列设备的俗称:()。A、油压机; B、剪板机; C、机械压力机; D、空气锤

题型:单项选择题

问题:

冲床是下列设备的俗称:()。

A、油压机;

B、剪板机;

C、机械压力机;

D、空气锤。

考点:冲压工考试高级冲压工高级冲压工题库
题型:单项选择题

母牛的泌乳期多少天计?

题型:单项选择题

下列各项,不引起空腹血糖降低的是()。

A.胰岛β细胞肿瘤

B.严重营养不良

C.甲状腺功能亢进症

D.肾上腺皮质激素缺乏

E.急性酒精中毒

题型:单项选择题

目前在我国家庭固定电话接听手机电话时是否要交费?

题型:单项选择题

Many consumers are concerned about the ecological effects of wasteful packaging. This concern probably explains why stores have been quick to stock new cleaning products that have been produced in a concentrated form. The concentrated form is packaged in smaller containers that use less plastic and require less transportation space.
Which of the following, if true, most seriously undermines the explanation offered above

A.Few consumers believe that containers of concentrated cleaning products are merely small packages of regular cleaning products.

B.The containers in which concentrated cleaning products are packaged are no harder to recycle than those in which regular cleaning products are packaged.

C.Those concentrated cleaning products that are intended to be used diluted have clear instructions for dilution printed on their labels.

D.The smaller containers of concentrated cleaning products enable supermarkets and drugstores to increase their revenues from a given shelf space.

E.(E) Consumer pressure has led to the elimination of wasteful cardboard packaging that was used for compact discs.

题型:单项选择题

根据《输变电工程施工过程质量控制数码照片采集与管理工作要求》,监理项目部所拍摄的工程数码照片“材料设备检验”分设()等三个次级文件夹(四级)。

A.“监理初检”

B.“见证取样”

C.“试件(试块)制作”

D.“设备到货验收”

更多题库