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【单选题】
低碳钢的过热区组织为粗大的 ( ) 。A.
体
B.
珠光体
C.
组织
D.
马氏体
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皮皮学刷刷变学霸
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【简答题】继电器的作用及类型有哪些?
【简答题】继电器的作用 有哪些?
【单选题】禁毒志愿者应当年满18岁，具有社会责任感和奉献精神;遵纪守法，热心禁毒工作;每年自愿参加()小时以上禁毒志愿服务工作;具有合法的身份证明，且具备相应的体能和服务技能。
A.
12
B.
24
C.
36
D.
48
【单选题】_____,I hardly think I would have recognized him.
A.
Should his name not be mentioned
B.
Had someone not mentioned his name
C.
If someone did not mention his name
D.
If someone had mentioned his name
【简答题】电流、电压继电器的作用有哪些？
【简答题】Frankly, I think I would have not become a writer if I had not been forced to leave everything behind and start ______. (formulate, detect, addict, anew, permanent)
【单选题】______, I hardly think I would have recognized him.
A.
Should his name not be mentioned
B.
Had someone not mentioned his name
C.
If someone did not mention his name
D.
If his name were not mentioned
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