ARCINFO命令操作的问题

<P>为什么在ARCEDIT中，地图在放大到一定比例之后无法选中弧段，而在缩小的情况下可以选中，如何用命令设置的。</P>

<P>谢谢</P>
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<img src="images/post/smile/dvbbs/em02.gif" /><img src="images/post/smile/dvbbs/em02.gif" /><img src="images/post/smile/dvbbs/em02.gif" /><img src="images/post/smile/dvbbs/em02.gif" />