1、【第46题-单选】经党中央批准、国务院批复,自2018年起,将每年农历( )设立为“中国农民丰收节”,这是第一个在国家层面专门为农民设立的节日。

1、【第586题-判断】下列表述是否正确:Industrial printing techniques include laser engraving, laser printing and laser perforation. ()

1、【第585题-判断】下列表述是否正确:Laser printing is a personal information integration technique. ()

1、【第584题-判断】下列表述是否正确:Laser perforation is an issuing technique. ()

1、【第583题-判断】下列表述是否正确:Letterpress is one of the desktop printing processes. ()

1、【第582题-判断】下列表述是否正确:Metameric ink can be observed as the same colour under reflected light. ()

1、【第581题-判断】下列表述是否正确:Shadow watermark can be slightly observed under side light. ()

1、【第580题-判断】下列表述是否正确:Line watermark can be slightly observed under side light. ()

1、【第579题-判断】下列表述是否正确:Intaglio printing has the printing character of halo and squash. ()

1、【第578题-判断】下列表述是否正确:Laser printing can have tactile effects. ()

1、【第577题-判断】下列表述是否正确:Laser perforation can be used with paper substrate. ()