Thin dashed dotted line to indicate axis line ，symmetrical center lines.
A.正確
B.錯誤
正確答案：正確
題目：Thin dashed dotted line to indicate axis line ，symmetrical center lines.
關鍵字：智慧樹
相關試題
1.Continuous thin irregular line to indicate part sectional boundary lines or to terminate a part view， and for short break line.
2.Thick dashed line shown can be made surface-treatment。
3.A compass is used to draw circles and arcs。
4.Which coordinates are related to H projection of a point？
5.How many types of parallel line are there relative to projection plane？
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