原帖由 恭喜发财 于 2007-2-3 00:05 发表7 m) L- l4 b! D$ [9 b8 n9 f
by the way, brother. What do you want to do? / t) ^* Z0 D$ U/ q+ ?3 | O ; s5 B7 \8 q, A- ^Last 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* f8 O) c& Y& y F H L( ? E6 T
by the way, brother. What do you want to do? 4 Z0 q) ]1 M0 i+ H x4 N7 k2 `8 O. P
Last time want to buy H2SO4 and AlNO3, this time you want to learn AutoCAD