单选题To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of （） and detergency.AsalinityBalkalinityCacidDsanitary
单选题
To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of （） and detergency.
A
salinity
B
alkalinity
C
acid
D
sanitary
参考解析
解析：
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