How is the ductility of a metal normally affected by cold working?Why?
略
举一反三
- A ductile metal becomes harder and stronger as it is subjected to cold working
- A ductile metal becomes harder and stronger as it is subjected to cold working
- A ductile metal becomes harder and stronger as it is subjected to cold working A: 正确 B: 错误
- It's well known Chinese people are hard working A: as if B: that C: how D: why
- I have no idea ____ she is so cold to me. A: what B: when C: how D: why
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In fact, there were different reasons___people are working long hours. A: where B: which C: why D: how
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What is the purpose of the first paragraph? （Text 1B) A: to describe what life was like working as a waitress B: to explain how waitressing helped prepare Griffiths for life as a photographer C: to compare Griffiths’ life before and after becoming a waitress D: to complain about how working as a waitress affected Griffiths’ university studies
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In metal interconnect, why do we need wide metal line to conduct larger DC current?
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Why Are pilots hardly be affected by frequent flying?
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The new trend here is _______ in the cold! A: work out B: working out C: working