1、【第39题-单选】2018年5月18日至19日,全国生态环境保护大会在北京召开,习近平总书记强调,加大力度推进生态文明建设,解决生态文明建设、解决生态环境问题,坚决打好( ),推动我国生态文明建设迈上新台阶。

1、【第592题-判断】下列表述是否正确:Solid colours are often produced by desktop printing processes. ()

1、【第591题-判断】下列表述是否正确:In most cases, ink jet printing uses liquid inks. ()

1、【第590题-判断】下列表述是否正确:Intaglio printing can be of different colours. ()

1、【第589题-判断】下列表述是否正确:Burn marks on the paper substrate can often be identified as laser perforation. ()

1、【第588题-判断】下列表述是否正确:Photo substitution can often be identified by the different integration techniques of the photo and personal data . ()

1、【第587题-判断】下列表述是否正确:Security fibres can be used to identify counterfeit documents. ()

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. ()