???????????????????????????在线测试（强化练习）

16??????? HTML????????????????????????????????? <p></p></p> <br> <p><a href="###" onclick="openShutManager(this,'box16',false,'????????','???????')">???????</a></p> <p id="box16" style="display:none"> ??????????????????<br>?????????<i class="target">?????</i>???????????</p> <br> <p style="font-size:18px;" >17??????????? ????????????????????IDS?????????????????? <p><p> A.???????????<br /> B.?????????<br /> C.??????????<br /> D.??豨??????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box17',false,'????????','???????')">???????</a></p> <p id="box17" style="display:none"> ???????B<br>????????????????</p> <br> <p style="font-size:18px;" >18???ж??? ?????????????ò?????????????????Ч??????λ??? <p></p></p> <br> <p><a href="###" onclick="openShutManager(this,'box18',false,'????????','???????')">???????</a></p> <p id="box18" style="display:none"> ?????????<br>????????????????</p> <br> <p style="font-size:18px;" >19??????????? Image?????????????????????????????????URL?? <p><p> A.NavigateUrl<br /> B.ImageUrl<br /> C.Text<br /> D.DescriptionUrl</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box19',false,'????????','???????')">???????</a></p> <p id="box19" style="display:none"> ???????B<br>????????????????</p> <br> <p style="font-size:18px;" >20??????????? ???????????????????????????? <p><p> A.Text<br /> B.Visible<br /> C.Enabled<br /> D.BackColor</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box20',false,'????????','???????')">???????</a></p> <p id="box20" style="display:none"> ???????B<br>????????????????</p> <br> <p style="font-size:18px;" >21??????????? ??????????????????????????? <p><p> A.???????<br /> B.???????????????<br /> C.?????λ<br /> D.??????????????<br /> E.???????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box21',false,'????????','???????')">???????</a></p> <p id="box21" style="display:none"> ???????B, C, D<br>????????????????</p> <br> <p style="font-size:18px;" >22??????????? ????????????????????????????У??? <p><p> A.???????????????????????<br /> B.?????????????????????????<br /> C.??????????????????????Ч??<br /> D.?????????????????????????????<br /> E.??????????????????????????????????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box22',false,'????????','???????')">???????</a></p> <p id="box22" style="display:none"> ???????A, B, C, D<br>????????????????</p> <br> <p style="font-size:18px;" >23??????? ?о????????????? ????????????????????Ч??? <p></p></p> <br> <p><a href="###" onclick="openShutManager(this,'box23',false,'????????','???????')">???????</a></p> <p id="box23" style="display:none"> ????????????????<br>?????????<i class="target">?????</i>?????????</p> <br> <p style="font-size:18px;" >24??????????? ???????????CSS ??????????????? <p><p> A.????????<br /> B.????????<br /> C.ID?????<br /> D.????????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box24',false,'????????','???????')">???????</a></p> <p id="box24" style="display:none"> ???????D<br>????????????????</p> <br> <p style="font-size:18px;" >25??????????? ???IPv4??????????????? <p><p> A.2<br /> B.4<br /> C.6<br /> D.8</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box25',false,'????????','???????')">???????</a></p> <p id="box25" style="display:none"> ???????B<br>????????????????</p> <br> <p style="font-size:18px;" >26??????????? ???????????汻????????????????????? <p><p> A.Page_OnLoad<br /> B.Page_Load<br /> C.Page_UnLoad<br /> D.Page_Submit</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box26',false,'????????','???????')">???????</a></p> <p id="box26" style="display:none"> ???????B<br>????????????????</p> <br> <p style="font-size:18px;" >27??????????? ????????????????? <p><p> A.??涥??????<br /> B.????“?????”????????????<br /> C.???????<br /> D.????????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box27',false,'????????','???????')">???????</a></p> <p id="box27" style="display:none"> ???????B<br>???????????? ????</p> <br> <p style="font-size:18px;" >28??????????? ???????????????????? <p><p> A.??????????<br /> B.?????????<br /> C.???????<br /> D.????????????<br /> E.???????????</p> </p></p> <br> <p><a href="###" onclick="openShutManager(this,'box28',false,'????????','???????')">???????</a></p> <p id="box28" style="display:none"> ???????A, B, C<br>????????????????</p> <br> <p style="font-size:18px;" >29??????? ????????滮?????????????????????????????? <p></p></p> <br> <p><a href="###" onclick="openShutManager(this,'box29',false,'????????','???????')">???????</a></p> <p id="box29" style="display:none"> ???????????????????????????<br>?????????<i class="target">?????</i>????????????????????</p> <br> <p style="font-size:18px;" >30???ж??? ????????????С? <p></p></p> <br> <p><a href="###" onclick="openShutManager(this,'box30',false,'????????','???????')">???????</a></p> <p id="box30" style="display:none"> ?????????<br>????????????????</p> <br> 题库试看结束后<span style="font-weight: bold; color: rgb(255, 0, 0);">微信扫下方二维码</span>即可打包下载完整版《★》题库 <div><div style="text-align: center;"><img onload='if(this.width>600)makesmallpic(this,600,1800);' onload='if(this.width>600)makesmallpic(this,600,1800);' onload="if(this.width>600)makesmallpic(this,600,1800);" src="http://www.91exam.org/ewebeditor/uploadfile/2019/04/02/20190402155207853.png" align="center" style="font-size: 9pt;"></div> <div>手机用户可<span style="color: rgb(255, 0, 0);">保存上方二维码</span>到手机中，在<span style="color: rgb(255, 0, 0);">微信扫一扫中右上角</span>选择“从<span style="color: rgb(255, 0, 0);">相册选取二维码</span>”即可。</div><div>题库试看结束后<span style="font-weight: bold; color: rgb(255, 0, 0);">微信扫下方二维码</span>即可打包下载完整版《???????????????????????????》题库，<span style="font-weight: bold;"><span style="color: rgb(255, 0, 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