1、【第50题-单选】电影《红海行动》取材自真实的“( )撤侨”事件。

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. ()

1、【第576题-判断】下列表述是否正确:Laser engraving can be used on paper substrate. ()

1、【第575题-判断】OVI( )在不同角度下观察只能看见同一颜色的深浅变化。

1、【第574题-判断】OVI ( ) 有金属光泽。

1、【第573题-判断】Overprint是指两种或两种以上的图案相重叠。