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【单选题】
The oil _____ in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.A.
filter
B.
hole
C.
pollution
D.
content
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皮皮学刷刷变学霸
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A.
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B.
杞菊地黄丸
C.
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D.
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E.
龙胆泻肝汤
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【单选题】In a traditional Chinese society, _____ were able to fill the gaps in education and teaching, especially in an agricultural society, because it is regarded as a vehicle to spread knowledge and ethics,...
A.
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B.
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C.
opera
D.
religious activities