A.從兩邊向中間畫B.照常一筆畫成C.用尺規(guī)輔助作畫D.目測定點分段畫出
A.轉(zhuǎn)動圖紙由左向右畫B.轉(zhuǎn)動圖紙由右向左畫C.由上向下畫D.由下向上畫
A.由左向右畫B.由右向左畫C.轉(zhuǎn)動圖紙由上向下畫D.轉(zhuǎn)動圖紙由下向上畫