船舶动力装置的压力缩空气系统的压缩空气在船上可用作() ①主、辅机起动 ②江、淡水压力水柜充气 ③海底阀、集中排水箱吹堵 ④气笛气源 ["①②③④","①②③","①③④","②③④"]
在路由器配置参数中,interface-name为()。 ["A、指定该路由的发送接口名 ","B、该路由的下一跳IP地址 ","C、该路由的优先级别 ","D、不可达路由"]
下列汉字中,其读音为零声母音节的是()。 ["吨","根","森","文"]
Washington Irving fills the stories with the"local color"of() ["New York City","Hudson River valley near New York","New York state","New England"]
技术贸易壁垒主要包括哪些内容?
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