涂膜划格试验不适用于涂膜厚度大于250μm的涂层，也不适用于有纹理的涂层。( )
参考答案：对
Here _____ in the classroom. [ ]
A. is three woman teachers
B. is three women teachers
C. are three woman teachers
D. are three women teachers
孔版印刷包含（）
A.照相版印刷
B.丝网印刷
C.誊写版印刷
D.打字蜡版印刷
E.镂空版喷刷
