Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?
A.Pressure-reducing valve
B.Unloading valve
C.Counterbalance valve
D.Pressure-relief valve
对于一个正常的移动台主叫流程,下面的信令流程先后次序正确的是()A.OriginationMessage->CMServiceRequest->Allocation->Establish->AssignmentComplete->TchPreambleB.OriginationMessage->CMServiceRequest->TchPreamble->Establish->AssignmentCompleteAllocationC.OriginationMessage->CMServiceRequest->Establish->Allocation->TchPreamble->AssignmentCompleteD.OriginationMessage->CMServiceRequest->Establish->AssignmentComplete->Allocation->TchPreamble
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A vessel is "listed" when it is ______.A.down by the headB.down by the sternC.inclined due to off-center weightD.inclined due to wind
在下面的描述中,属于ppp协商阶段的正确的顺序描述是()。A.deaD.establish－network－authenticate－terminateB.lcp－authenticate－terminateC.deaD.establish－authenticate－network－terminateD.deaD.lcp－establish－ncp
The doctors did notreveal the truth to him.A:hide B: handle C:disclose D:establish
The doctors did not reveal the truth to him.A:.hide B: handle C: disclose D: establish
Such a database would be extremely costly to set up.A:destroy B:transfer C:update D:establish
Such a database would be extremely costly to set up.A:update B:transfer C:destroy D:establish
