单选题For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because （）.Achanging filter elements would not interrupt engine operationBfiltering occurs twice in each pass of oil through the systemCclogging will not occurDdropping pressure is half of that through a single filter unit
单选题
For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because （）.
A
changing filter elements would not interrupt engine operation
B
filtering occurs twice in each pass of oil through the system
C
clogging will not occur
D
dropping pressure is half of that through a single filter unit
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