What does a thick line represent in drawing？
A.represent symmetrical line
B.represent invisible line
C.represent hatching line
D.represent visible line
正確答案：represent visible line
題目：What does a thick line represent in drawing？
關鍵字：智慧樹
相關試題
1.The possible direction of a dimension text should towards？
2.The "R" and "? " means radius and diameter.
3.The elements of the dimension
4.Thin dashed dotted line to indicate axis line ，symmetrical center lines.
5.Continuous thin irregular line to indicate part sectional boundary lines or to terminate a part view， and for short break line.
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