A.trap
B.regulating valve
C.check valve
D.filter
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A.circuit breaker
B.amplifier
C.diode
D.capacitor
A.keeping the terminals clean
B.coating cable connections with petroleum jelly
C.maintaining a trickle charge
D.All of the above
A.Any time it is deemed necessary
B.Only with the masters permission
C.After a 10 minute delay to the input command
D.Only after the throttle has been placed in stop
A.has high resistance at low temperatures
B.has a highly polished surface
C.is able to pass current with little opposition
D.holds insulation together well
A.analogger
B.bell logger
C.alarm logger
D.data logger
最新試題
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