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当前学科：中级渠道维护工
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制作沥青油膏，分别配置好沥青与硫化鱼油后，盛于80～100℃的搅拌箱内，按比例加入（）搅拌15min左右．即成油膏。
A . A、松焦油
B . B、重松节油
C . C、填料
D . D、硫磺粉
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