[中级难度真题]钢筋材料 标签：工程问题
<p>解析：设截成<font face=" ,Times New Roman">17</font><font face=" ,Times New Roman">x</font><font face=" ,Times New Roman">24</font><font face=" ,Times New Roman">y</font><font face=" ,Times New Roman">17x+24y=239</font><font face=" ,Times New Roman">x</font><font face=" ,Times New Roman">7</font><font face=" ,Times New Roman">y=5</font></p>
页:
[1]