by the way, brother. What do you want to do? 7 Q, R! F1 l% x' u- Z! D 6 m- o$ j$ n5 ~9 V9 FLast time want to buy H2SO4 and AlNO3, this time you want to learn AutoCAD
原帖由 恭喜发财 于 2007-2-3 00:05 发表9 ~: }. M& I" p7 M7 u
by the way, brother. What do you want to do? 1 _. u5 V3 u$ d2 N1 e5 }& R7 U & Y# {' r/ X% f/ Y: A' E7 ~# DLast time want to buy H2SO4 and AlNO3, this time you want to learn AutoCAD
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画一个桥的工程图,发现一下桥的弱点,好安装炸药的说~
原帖由 恭喜发财 于 2007-2-3 00:05 发表) y7 U( S1 a& k' g Q" M
by the way, brother. What do you want to do? 5 {3 [! N+ b# W2 x8 ~- K+ u. L, @; k- S& V
Last time want to buy H2SO4 and AlNO3, this time you want to learn AutoCAD
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一个是工作用。一个是业余爱好。 呵呵