题目内容：
焊缝的外观检验主要包括（ ）检查。
A．未焊透 B．咬边
C．未融合
D．错口
E．凹陷
参考答案：
答案解析：
多选题：焊缝的外观检验主要包括（ ）检查。
- 题目分类：机电工程管理与实务
- 题目类型：多选题
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B．咬边
C．未融合
D．错口
E．凹陷
B．咬边
C．未融合
D．错口
E．凹陷
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