（ ） It is the WAN transmission technology after IP technology. It uses data label to guide data packet to transmit in open communication network with high speed and high efficiency, and introduces connection mode in a connectionless network, which reduces network complexity. 下列 是继IP 技术之后的广域网传输技术，利用数据标签引导数据包在开放的通信网络上进行高速、高效传输，在一个无连接的网络中引入连接模式，减少了网络复杂性。

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If the pump is unserviceable replace it.

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One of the benefits of the new model is that it is easier______than the old one

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Let the temperature of the component decrease until it is the same as the ambient temperature.

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The plot of the story is so _____ that it is believed to be ridiculous.

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It is the responsibility of the airplane owner and the pilot to insure that the airplane is loaded properly.

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