卧式镗床的镗杆有轻度弯曲时,允许通过修复来消除,但决不能降低()A、直线度B、圆度C

题型:单项选择题

问题:

卧式镗床的镗杆有轻度弯曲时,允许通过修复来消除,但决不能降低()

A、直线度

B、圆度

C、圆柱度

D、表面硬度

考点:初级钳工初级钳工题库
题型:单项选择题

碳二加氢催化剂在使用过程中配入粗氢,是因为()。

A.氢气的纯度太高

B.粗氢中含一氧化碳可抑制催化剂的活性

C.氢气中甲烷含量低

D.氢气量不够

题型:单项选择题

Service (71) Architecture aims to provide a model for the creation of service components in a wide range of languages and a model for assembling service components into a business solution-activities which are at the heart of building applications using a (72) architecture.
Service Data Objects aims to provide consistent means of handling (73) within applications, whatever its source or (74) may be. SDO provides a way of unifying data handling for databases and for services. SDO also has mechanisms for the handling of data while (75) from its source.

A.consisted

B.builded

C.assembled

D.detached

题型:单项选择题

申请注册的商标应当具有(),便于识别,并不得与他人在先取得合法权利相冲突。

A、标记特征

B、显著特征

C、可视性特征

D、气味特征

题型:单项选择题

椎体最大者,是()。

A.骶椎

B.颈椎

C.腰椎

D.胸椎

E.尾椎

题型:单项选择题

烧结料中的水分在烧结过程中起到()作用。

A.成球

B.润滑

C.传热

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