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这会子既然过来了，我就脸皮放厚些，去刘家讨一顿酒吃。Since UDP is not a connection protocol, it has the advantages of low resource consumption and fast processing speed. Therefore, UDP is usually used more in audio, video and ordinary data transmission, because even if they occasionally lose one or two data packets, they will not have much impact on the reception results. For example, ICQ and QQ we use to chat are UDP protocols.四人又说笑几句，便被催着去歇息。The police continued their search around. 200 meters south of the house was an abandoned pumping station. After careful investigation of the wall to the west of the pumping station, the investigators made another major discovery: some dripping and scratching blood. The blood was covered with loess, but traces could still be seen. Following the blood, the investigators carried out a blanket investigation to the south and found a hidden cave 100 meters away from the pumping station. The terrain was relatively partial and it was difficult to find. When the investigators approached the entrance of the cave, dripping blood appeared on the rock wall under the entrance of the cave. Intuition told the investigators that the cave would uncover the mystery of the disappearance of the couple. They carefully entered the cave to explore, From the outside to the inside, the space in the cave gradually widened. There was a large amount of corn straw on the ground. The corn straw was piled thickest in the northwest corner. Investigators moved the straw upward and found a relatively small foot. After another move, they found two other relatively large feet. Preliminary analysis showed that one man, one woman and two bodies were inside. After identification, the two bodies in the cave were newly married couple Sun Gang and Li Hong.The side that corresponds to the component side of the printed board.也亏的他身体强健，精力充沛异于常人，若非如此早就撑不下去了。