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Listen to the recording and fill in the blanks: Erika Ender moved from (01)to Miami to break into the music industry. Hundreds of (02)do that every year, but few meet with the success Ender has. She is the co-writer of Despacito , the most (03) song of all time. She is also the youngest (04) into the Latin Songwriters’ Hall of Fame. As remarkable as this accomplishment is, Ender considers her (05) to be using her music to do good. Her parents took her as a child to places where children had little. She sang with them and spent time understanding them. (06) those values, she started Puertas Abiertas, an (07) that works to end child labor. Not satisfied with that, she then built 12 schools and raises money for college (08) for students. She still works hard on her (09) but says, “my work is meaningful to me because I get to mark people’s lives and I get to touch people’s hearts. That’s the best (10) I could get.”
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A.
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B.
错误
【简答题】何谓加工精度与加工误差?
【简答题】1 ,机械加工精度包括哪些因素?实现加工精度的方法有哪些? 2 ,加工精度与加工误差是何关系? 3 ,产生加工误差的原因是什么?原始误差指的是什么? 4 ,何谓误差敏感方向? 5 ,加工原理误差指的是什么?举例说明。
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A.
正确
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A.
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A.
尺寸
B.
形状
C.
位置
D.
配合
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【简答题】何谓加工精度与加工误差?两者有什么联系?
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