【单选题】
MCR护套压缩比的规格值、目标值分别是多少?___
A. 17%-33%;25%
B. 15%-35%;25%
C. 16%-36%;26%
D. 15%-37%;26%
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答案
A
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一些高速铣刀或硬质合金铣刀表面涂敷一层Tie或Tin等材料,其目的是()___
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球笼压碎力检验的频次为()___
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球笼热处理后硬度一般为()___
A. HRC54-58
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以下哪种球笼热后不需要再硬加工()___
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螺栓紧固的本质是:___
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B. 紧固后有足够的扭矩,保证轴向外载荷下零件不分离,横向外载荷下零件不滑移
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以下哪些是WTS轴的优势___
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一个减震圈一般匹配几个夹箍___
A. 0个
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目前公司等速传动轴使用的夹箍有哪几种___
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关于VL节端盖密封胶的要求哪些是正确的___
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以下符合产品轻量化的方案___
A. 实轴改为MTS
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GI3比GIi的优势是什么___
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GI节不适用于下列哪些变速箱___
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【多选题】
DO节分档要求___
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【多选题】
等速传动轴的中间轴有哪几种___
A. 实轴
B. 焊接式空心轴
C. 整体式空心轴
D. 焊接式实轴
【多选题】
MTS轴的优点包括___
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AAR节的优点包括___
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【多选题】
盘状VL节的优点有哪些___
A. 制造成本便宜
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GI节的优点包括___
A. 制造成本便宜
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以下哪种零件需要淬火热处理后回火___
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材料的力学性能主要包括那些内容___
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下列元素中那些能够提高钢的淬透性___
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在下列参数中,能表示系统误差、随机误差影响的是___
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下列哪些与传动轴发生震动有关?___
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轴管溃缩结构的设计需要考虑哪几个方面___
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纳铁福实验室的质量方针包括___
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( ) 31. What would someone learn from this passage?    A.How to live by oneself. B.How to stand on one's own feet.    C.What a good father should do. D.What the self-important is like.
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( ) 32. What may be the proper Chinese for the underlined part in the passage?    A.闲暇时光 B.学费 C.精神空虚 D.经济不足
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( ) 34. Judy Foreman copied down the phrase because she ___ . A. thought it was beautifully written B. wanted to know what it really meant C. decided to write it on a warehouse wall D. wanted her husband to put it up in the classroom
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( ) 37.The greatest river for navigation is ___________. A. the Nile B. the Amazon C. the Mekong D. the Mississippi
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( ) 38. From a dam, people can use the water for ___________. A. keeping the rivers clean B. only making electricity C. irrigation and making electricity D. washing clothes
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【单选题】
( ) 39. The water in the river is polluted because of _____________. A. people's drinking water too much B. people's swimming in the river too much C. chemicals and other materials D. people's building a dam across a river
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【单选题】
( ) 40. The best title of the passage is ___________. A. Rivers in Cities B. The importance of Rivers C. Transportation D. Natural Resources
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B. B
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