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單項(xiàng)選擇題
A.±1% B.±5% C.±8% D.±10%
A.0~30℃ B.0~60℃ C.-10℃~30℃ D.-25℃~60℃
A.不大于25% B.不大于50% C.不大于60% D.不受限值
A.雙面焊 B.單面焊 C.幫條焊 D.對(duì)焊
A.±1% B.±0.5% C.±2% D.±1.5%
A.0~100% B.10%~90% C.20%~80% D.30%~70%
A.1 B.2 C.3 D.4
A.10mmX10mmX50mm B.10mmX10mmX55mm C.15mmX15mmX50mm D.15mmX15mmX55mm
A.90º B.180º C.45º D.60º
A.2d B.3d C.4d D.5d
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