根据施工劳务分包合同示范文本的规定，可以调整劳务报酬的情况是（）。 由于劳务分包人原因造成的返工。 通货膨胀导致劳务价格变化。 法律政策变化导致劳务价格变化。 由于劳务分包人原因造成的安全事故。
Refer to the exhibit. What is the sequence of events when a VoIP call is placed from IP phone P1 to IP phone P2？ （） RTP traffic is exchanged between IP phone P1 and IP phone P2. IP phone P1 alerts the CCM of off-hook state. CCM instructs IP phone P1 to provide dialtone. IP phone P1 passes digits to CCM. CCM routes call to PSTN or IP phone P2.。 CCM instructs IP phone P1 to provide dialtone. IP phone P1 alerts the CCM of off-hook state. IP phone P1 passes digits to CCM. CCM routes call to PSTN or IP phone P2. RTP traffic is exchanged between IP phone P1 and IP phone P2. 。 CCM instructs IP phone P1 to provide dialtone.IP phone P1 alerts the CCM of off-hook state. IP phone P1 passes digits to CCM. RTP traffic is exchanged between IP phone P1 and IP phone P2. CCM routes call to PSTN or IP phone P2.。 IP phone P1 alerts the CCM of off-hook state. CCM instructs IP phone P1 to provide dialtone. IP phone P1 passes digits to CCM. CCM routes call to PSTN or IP phone P2. RTP traffic is exchanged between IP phone P1 and IP phone P2.。
国家助学贷款管理办法规定借款人必须在毕业后（）年内还清。 2。 4。 6。 10。
霜冻对作物的危害主要是（）。 结霜。 低温。 风。 结霜加低温。
What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（） it avoids split-horizon issues with distance vector routing protocols.。 IP addresses can be conserved if VLSM is not being used for subnetting.。 A multipoint interface offers greater security compared to point-to-point subinterface configurations.。 The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.。
运输企业统计完好车日在总车日中所占的百分比通常称为（）。
