单项选择题
A.5°B.3°C.2°D.10°
A.1B.2C.3D.4
A.30minB.60minC.90minD.120min
A.贴胶吸盘高温胶起皱B.拉胶过辊是否卡顿和抱辊无法抱紧C.吸盘上有残胶D.极耳距离不良
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