A．n electrical device which prevents an action from occurring until all other required conditions are met is called a/an _____.

A．limit

B．monitor

C．modulator

D．interlock

[单选题]A．n electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as aA．magnetic amplifierB．ship's service alternatorC．three-wire DC generatorD．saturable core reactor

[单选题]is a device which enables digital microcomputers to communicate across analog telephone lines.A．The switchB．The modemC．The hubD．The repeater

[单选题]( ) is a six bytes OSI layer 2 address which is burned into every networkin

[单选题]Which rhetoric device is used in the following sentence? The fair breeze bl

[单选题]Arbitrage prevents:A.Market efficiency.B.Profit higher than the risk-free r

[试题]F．low control is a function that prevents network congestion by ensuring that _（ ）_ do not overwhelm_（ ）_ with data．There are three commonly used methods for handling network congestion．_（ ）_is used by network devices to temporarily store bursts of ex

[单选题]F．low control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data. There are three commonly used methods for handling network congestion.(73)is used by network devices to temporarily store bursts of excess

[单选题]F．low control is a function that prevents network congestion by ensuring that(66)do not over-whelm(67)with data. There are three commonly used methods for handling network congestion.(68)is used by network devices to temporarily store bursts of exces

[单选题]The unit of electrical power is the _____.A．ampereB．kilovoltC．wattD．farad

[单选题]The unit of electrical resistance is theA．ampereB．voltC．wattD．ohm