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3.顺序喷射
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4.同步喷油
Fill in the blanks with the right words to complete the sentences. You will not need all of them.popularexpensivefirstimportantfitspecial1 The Olympic Games is a very __________________ event for the athletes.2 It is better to choose a hobby which is not _______________________ .3 Every afternoon from 2 o’clock till 4 o’clock, Jim goes to the gym. He is very __________________ .4 Tennis, football and swimming are all ____________________ sports. People are doing them almost everywhere.5 Everyone is equal. No one receives ______________________ treatment.
综合布线系统中直接与用户终端设备相连的子系统是？
由终端设备连接到信息插座的连线组成，用于连接终端设备与IO/Base的是
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