题目内容

关于KTZ450—06的说法中错误的是()。

A. 普通质量碳钢
B. 最低抗拉强度值450N/mm
C. 最低延伸率值6%
D. 可用来制作柴油机曲轴、凸轮轴等

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金属材料的耐冲是其必须具备的()之一

A. 生产加工工艺性能
B. 装饰性能
C. 包装性能
D. 组织性能

开放改革以来,我国工程机械制造业的并购、重组和扩张的大潮一直此起彼伏。读“我国工程机械制造业发展阶段示意图”我国企业在海外布局考虑的最主要区位因素是()

A. 原料
B. 动力
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D. 劳动力

Wisebuyingisapositivewayinwhichyoucanmakeyourmoneygofurther.The()yougoaboutpurchasinganarticleoraservicecanactually()youmoneyorcanadd()thecost.Takethe()exampleofahairdryer.Ifyouarebuyingahairdryer,youmight()thatyouaremakingthe()buyifyouchooseone()lookyoulikeandwhichisalsothecheapest()price.Butwhenyougetithomeyoumayfindthatit()twiceaslongasamoreexpensive()todryyourhair.Thecostoftheelectricityplusthecostofyourtimecouldwell()yourhairdryerthemostexpensiveoneofall.Sowhatprinciplesshouldyou()whenyougooutshopping?Ifyou()yourhome,yourcaroranyvaluable()inexcellentcondition,you’llbesavingmoneyinthelong()Beforeyoubuyanew(),talktosomeonewhoownsone.Ifyoucan,useitorborrowittocheckitsuitsyourparticular()Beforeyoubuyanexpensive(),oraservice,docheckthepriceand()isonoffer.Ifpossible,choose()threeitemsorthreeestimates.请在第()处填上正确答案。查看材料

A. save
B. preserve
C. raise
D. retain

Wisebuyingisapositivewayinwhichyoucanmakeyourmoneygofurther.The()yougoaboutpurchasinganarticleoraservicecanactually()youmoneyorcanadd()thecost.Takethe()exampleofahairdryer.Ifyouarebuyingahairdryer,youmight()thatyouaremakingthe()buyifyouchooseone()lookyoulikeandwhichisalsothecheapest()price.Butwhenyougetithomeyoumayfindthatit()twiceaslongasamoreexpensive()todryyourhair.Thecostoftheelectricityplusthecostofyourtimecouldwell()yourhairdryerthemostexpensiveoneofall.Sowhatprinciplesshouldyou()whenyougooutshopping?Ifyou()yourhome,yourcaroranyvaluable()inexcellentcondition,you’llbesavingmoneyinthelong()Beforeyoubuyanew(),talktosomeonewhoownsone.Ifyoucan,useitorborrowittocheckitsuitsyourparticular()Beforeyoubuyanexpensive(),oraservice,docheckthepriceand()isonoffer.Ifpossible,choose()threeitemsorthreeestimates.请在第()处填上正确答案。

A. up
B. to
C. in
D. on

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