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Helen: Making use of the heavy traffic to produce electricity.
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The city assigned a policeman to the school crossing because () traffic there was so heavy.
A.aB.anC.theD.one
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The day the bridge collapsed right in the middle, traffic was particularly heavy .Nobody was conscious about the danger.()
此题为判断题(对，错)。
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He would have come here on time, but he() by the heavy traffic on the way.
A、keptB、had keptC、was keptD、had been kept
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The traffic is heavy this day，I____________arrive a bit late，so could you save me a place?A．canB．mustC．needD．might
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Because of the heavy traffic，it was already time for lunch break_________ she got to her office．A．sinceB．thatC．whenD．until
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－－I'm so sorry, I am due to the heavy traffic.__________
A.Well, it's okB.No, it's all rightC.You are welcome
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Helen Keller learnt to ______.A. care for children.B. express hersel.C. travel alone.D. use her physical strength.
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We often use the machine for making bicycles．【改为被动语态）The machine__________ often__________ for making bicycles by us．
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A vessel outbound from a port or pilot station within an inshore traffic zone is recommended to ______．A.call at a port，pilot station，destination or sheltered anchorageB.use the appropriate lane other than the adjacent traffic separation schemeC.use the inshore traffic zoneD.join the adjacent traffic lane as soon as possible
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The Charterers to have the right to __________ of all winches，derricks including heavy lift gear and/or cranes to their full capacity．A.Freely useB.Use freelyC.Free useD.Use free
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Helen had to shout__________above the$Ollrld of the music．A.making herself
B.to make herself hear
C.making herself heard
D.to make herself heard
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Which three QoS mechanisms can be configured to improve VoIP quality on a converged network？（）A、The use of a queuing method that will give VoIP traffic strict priority over other traffic B、The use of RTP header compression for the VoIP traffic.C、The proper classification and marking of the traffic as close to the source as possibleD、The use of 802.1QinQ trunking for VoIP trafficE、The use of WRED for the VoIP traffic
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Which two statements describe traffic policing？（）A、Traffic bursts are smoothed out by queuing the excess traffic to produce a steadier flow of dataB、Excess traffic is buffered so that the traffic remains within the desired rate.C、Packets that conform to traffic policies are not delayed.D、Packet marking is available and allows excess packets to be re-marked with a lower priorit
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Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？ （）A、over leased lines， use the multilink ppp command to reduce latency and jitter， and to create Distributed Link Fragmentation and interleavingB、use the service-policy command to attach a traffic flow to an interface on the routerC、use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses， and to guarantee admission of any flowsD、use the policy-map command to define one or more QoS policies （such as shaping， policing， and so on） to apply to traffic defined by a class mapE、use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP valueF、use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified
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Users at the Charleville Company began experiencing high network delays when Internet connectivity was enabled for all users. After investigating the traffic flow, you determine that peerto-peer traffic from a music download site is consuming a large amount of bandwidth. Which QoS mechanism can you implement to improve the network response time?（）A、Use CBWFQ to queue the peer-to-peer traffic into the default traffic class.B、Use class-based WRED to randomly drop the peer-to-peer traffic during network congestions.C、Use class-based policing to limit the peer-to-peer traffic rate.D、Use class-based shaping to delay any excessive peer-to-peer traffic. Answer: C
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Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）A、The use of a queuing method that will give VoIP traffic strict priority over other trafficB、The use of RTP header compression for the VoIP trafficC、The proper classification and marking of the traffic as close to the source as possibleD、The use of 802.1QinQ trunking for VoIP trafficE、The use of WRED
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What is the use of ERSPAN on N1kv？（） A、 Send monitored traffic to a VLANB、 Send monitored traffic to a remote VEM over L2C、 Receive monitored traffic on a vEthernet interfaceD、 Send monitored traffic to an IP destination
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多选题Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP trafficCThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED
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单选题The main advantage of a Chinese stopper over the one line stopper is that it（）.A
will not jam on the mooring lineB
is strongerC
is easier to use when under heavy tensionD
is safer to use when under heavy tension
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单选题What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）A
ChainB
RingC
Solid thimbleD
A fishplate
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单选题The self-contained breathing device should not be used in which situation?（）A
Oxygen deficient spacesB
Compartments containing poisonous vaporsC
Fighting fires that produce heavy smokeD
Underwater search
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单选题Because of the heavy traffic, it was already time for lunch break ______ she got to her office.A
sinceB
thatC
whenD
until
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多选题Which three QoS mechanisms can be configured to improve VoIP quality on a converged network？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP traffic.CThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED for the VoIP traffic
考题
多选题Which two statements describe traffic policing？（）ATraffic bursts are smoothed out by queuing the excess traffic to produce a steadier flow of dataBExcess traffic is buffered so that the traffic remains within the desired rate.CPackets that conform to traffic policies are not delayed.DPacket marking is available and allows excess packets to be re-marked with a lower priorit
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