Copper
Copper and carbon
Carbon
Bronze
第1题：
Which of the listed devices may be used as a digital device?
A.variable resistor
B.diode
C.strain gauge
D.thermistor
第2题：
A.Provide dynamic IPaddressesforDSIs.
B.Provide connectivity to DHCP servers on other subnetworks.
C.Provide dynamic IP addresses for SRC applications.
D.Provide dynamic IP addresses from pools used for PPPoE subscribers.
第3题：
Which of the units listed is used to combust waste in the engine room?
A.Boiler
B.Incinerator
C.Generator
第4题：
Which two applications can be used to view actual costs for labor， materials， services， and tools？（）
第5题：
Which of the listed functions is the purpose of a gas scrubber in an inert gas generation system ________．
A.Cools the inert gas
B.Maintains the oxygen content at 5% by volume
C.Drains off static electricity in the inert gas
D.Maintains the water seal on the gas main
第6题：
A. configure batch
B. configure private
C. configure exclusive
D. configure dynamic
第7题：
Which of the listed devices is used to measure pressure and convert it to an electrical signal?
A.Transducer
B.Reducer
C.Transformer
D.Rectifier
第8题：
When placed in a magnetic field, which of the materials listed will maintain the highest permeability?( )
A.Glass
B.Bakelite
C.Soft iron
D.Aluminum
第9题：
Which kind of table will be used by most firewalls today to keep track of the connections through thefirewall？（）
第10题：
link bandwidth
hop count
link cost
administrative distance