题目内容
(请给出正确答案)
[单选题]
In the as-quenched state, martensite is very hard and so brittle that a heat treatment known as must be accomplished sequently.
A.normalizing
B.annealing
C.tempering
D.austempering
提问人:网友gqsqlca
发布时间:2022-01-07
A.normalizing
B.annealing
C.tempering
D.austempering
A./ˌstəʊməˈtɔpləstɪ/
B./ˌstəʊməˈtɔplæstɪ/
C./stəʊˈmɔtɔplæstɪ/
D./ˈstəʊmətəˌplæstɪ/
A.ST* ST* ST*
B.ST*ST
C.ST*
D.***
A.['a','x']
B.['a']
C.['x']
D.['x','a']
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