6．印刷被誉为人类“文明之母”，但其发明是以________的出现为前提。

A．油墨                                                          B.泥活字

C.造纸                                                             D.雕版

7．________的网目可以用在像平装书籍中的模造纸。

A．65线-100线                                               B.133线

C.200线-300线                                                D.350线-450线

8．如将两色叠印在一起而不改变色相，称为

A．叠色                                                          B.间色

C.衬底色                                                         D.混合色

9．用胶版纸，半色调图像的挂网线数，不应该高于

A．133lpi                                                         B.133dpi

C.180lpi                                                           D.180dpi

10．印刷成品边缘有图文，叫

A．出血                                                          B.勒口

C.咬口                                                             D.出线