国际航班二类服务(含贵宾专属通道)每人次需要扣减多少积分?() ["1000","1500","2000","2500"]
国际航班一类服务(不含贵宾专属通道)每人次需要扣减多少积分?() ["1000","1500","2000","2500"]
《尔雅》“释宫”篇,“楣谓之()”: ["A.梁","B.门","C.窗","D.户"]
国内航班一类服务(不含贵宾专属通道)每人次需要扣减多少积分?() ["200","500","600","1000"]
下列机具中,()不属于装饰作业架设机具。 ["电动吊篮","液压平台","门式脚手架","井字架"]
氧化锌避雷器的主要特点有哪些?