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铸铁熔点比钢 ( )流动性比钢 ( ) 收缩率比钢 ( ) 故铸铁铸造性能好。
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铸铁熔点比钢 ( )流动性比钢 ( ) 收缩率比钢 ( ) 故铸铁铸造性能好。
A、高、好、小
B、低、好、小
C、高、坏大
D、低、坏、大
时间:2021-09-01 19:28
关键词:
青书学堂
河北建筑工程学院
金属工艺学(高起专)
答案解析
B
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