单选题艉轴铜套产生()时,应采用换新铜套。Ⅰ.磨损;Ⅱ.腐蚀;Ⅲ.壁厚过薄;Ⅳ.套合松动;Ⅴ.接缝渗水。AⅡ+ⅢBⅠ+Ⅱ+ⅣCⅢ+Ⅳ+ⅤDⅠ+Ⅲ+Ⅳ
单选题
艉轴铜套产生()时,应采用换新铜套。Ⅰ.磨损;Ⅱ.腐蚀;Ⅲ.壁厚过薄;Ⅳ.套合松动;Ⅴ.接缝渗水。
A
Ⅱ+Ⅲ
B
Ⅰ+Ⅱ+Ⅳ
C
Ⅲ+Ⅳ+Ⅴ
D
Ⅰ+Ⅲ+Ⅳ
参考解析
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