名词解释题detergent(去垢剂)
名词解释题
detergent(去垢剂)
参考解析
解析：
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相关考题：
I would like to draw your attention ________ our new detergent powders. A.forwardB.towardsC.forD.on
单选题According to the instructions, which of the following is TRUE?AThe gasket should be cleaned thoroughly with cold water.BMild detergent and hot water can best clean the cooker.CSoapy water will often damage the cooker.DSand can be used to clean the cooker.
单选题Which of the following operations may be dangerous?AOverfilling the cooker with food and water.BCleaning the cooker with detergent.CCooling the cooker with cold water.DSetting too little cooking time.
单选题If the detergent type lubricating oil being used in a diesel engine is black, the oil （）Amust be centrifugedBmust by filteredCmust be changedDis holding finely dispersed carbon in suspension
单选题Any carbon built up on surfaces must be washed away by （） additives and held in suspension by a （） additive.Adispersant；detergentBdetergent；dispersantCdispersant；dispersantDdetergent；detergent
单选题The crank chamber oil （）.Acan be recoveredBis only supplied to cylindersConly feeds the main bearingDis a kind of detergent
单选题可使蛋白质发生变性的方法不包括（ ）。A高温B极端pHC尿素D去垢剂(如十二烷基磺酸钠)E盐析法