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【判断题】
采用全铝合金车身的大型豪华轿车,其车身刚度和质量比旧款传统钢制车身均降低了。
A.
正确
B.
错误
题目标签:
全铝合金
豪华轿车
合金车
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【单选题】高速车削螺纹时,硬质合金车刀刀尖应()螺纹的牙型角。
A.
略大于
B.
等于
C.
略小于
D.
不确定
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【简答题】Tianjin Imperial Palace Hotel CLASS: ★★★ The Imperial Palace Hotel (Tianjin Huanggong Fandian) is centrally situated in the business district of Tianjin. The hotel was built in 1923 by a British merch...
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【简答题】Once you’ve tasted the joy and of an all-access backstage pass, sitting in the balcony(楼厅) far from the stage has little attraction. In March of 2008, I had the opportunity to tour with a band...
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【判断题】硬质合金车刀的硬度为89~93HRc。( )
A.
正确
B.
错误
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【单选题】Wesley Autrey can't fly, but he is still being called a real-life Superman! Last week, the brave 50-year-old rescued Cameron Hollopeter, 20, from being hit by a train. The train was entering a subway ...
A.
he can rescue anybody in danger as he has the ability to fly
B.
he rescued a young man from being hit by a running train
C.
he protected his daughters from harm in a subway station
D.
he succeeded in stopping a train from running over a passenger
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【单选题】( )砂轮适用于硬质合金车刀的刃磨。
A.
绿色碳化硅
B.
黑色碳化硅
C.
碳化硼
D.
氧化铝
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【判断题】磨削硬质合金车刀,常选用磨料为棕刚玉的砂轮。
A.
正确
B.
错误
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【单选题】梯形螺纹加工时,硬质合金车刀用于()。
A.
低速
B.
较低速
C.
中速
D.
高速
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【简答题】铝合金车身的优点有哪些?
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【单选题】焊接式硬质合金车刀的耐用度一般为()
A.
15-30min
B.
60-90min
C.
90-150min
D.
150-200min
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