首页/ 题库 / [单选题]焊缝()是指存在于焊缝或热影响区内部或表的答案

焊缝()是指存在于焊缝或热影响区内部或表面的缝隙。

单选题
2022-02-26 19:23
A、未焊透
B、裂纹
C、咬边
D、气孔
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正确答案
B

试题解析

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