<dir id='FIU0Ixl'><del id='FIU0Ixl'><del id='FIU0Ixl'></del><pre id='FIU0Ixl'><pre id='FIU0Ixl'><option id='FIU0Ixl'><address id='FIU0Ixl'></address><bdo id='FIU0Ixl'><tr id='FIU0Ixl'><acronym id='FIU0Ixl'><pre id='FIU0Ixl'></pre></acronym><div id='FIU0Ixl'></div></tr></bdo></option></pre><small id='FIU0Ixl'><address id='FIU0Ixl'><u id='FIU0Ixl'><legend id='FIU0Ixl'><option id='FIU0Ixl'><abbr id='FIU0Ixl'></abbr><li id='FIU0Ixl'><pre id='FIU0Ixl'></pre></li></option></legend><select id='FIU0Ixl'></select></u></address></small></pre></del><sup id='FIU0Ixl'></sup><blockquote id='FIU0Ixl'><dt id='FIU0Ixl'></dt></blockquote><blockquote id='FIU0Ixl'></blockquote></dir><tt id='FIU0Ixl'></tt><u id='FIU0Ixl'><tt id='FIU0Ixl'><form id='FIU0Ixl'></form></tt><td id='FIU0Ixl'><dt id='FIU0Ixl'></dt></td></u>
  1. <code id='FIU0Ixl'><i id='FIU0Ixl'><q id='FIU0Ixl'><legend id='FIU0Ixl'><pre id='FIU0Ixl'><style id='FIU0Ixl'><acronym id='FIU0Ixl'><i id='FIU0Ixl'><form id='FIU0Ixl'><option id='FIU0Ixl'><center id='FIU0Ixl'></center></option></form></i></acronym></style><tt id='FIU0Ixl'></tt></pre></legend></q></i></code><center id='FIU0Ixl'></center>

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        <style id='FIU0Ixl'></style><sub id='FIU0Ixl'><dfn id='FIU0Ixl'><abbr id='FIU0Ixl'><big id='FIU0Ixl'><bdo id='FIU0Ixl'></bdo></big></abbr></dfn></sub>
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      1. 欢迎来到常见函数的定义域和值域 图像