请教一个问题，以下的这段，应该怎么写正则表达

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<div class="p6" data-sudaclick="photoHD">
        <div class="title-type3">
            <a class="title-left link-000000" href="http://roll.mil.news.sina.com.cn/photo_hz/photo_hdphoto/index.shtml" target="_blank">高清大图</a>
            <a href="http://roll.mil.news.sina.com.cn/photo_hz/photo_hdphoto/index.shtml" target="_blank" class="title-more link-000000">更多</a>
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                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_199_25276.html">
                        <img width="145" height="110" alt="中国火炮战力世界第三" src="http://i0.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7070F3917DT20130808120634.jpg">
                        <span>中国火炮战力世界第三</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_199_25270.html">
                        <img width="145" height="110" alt="首长就是�ACKGROUND-COLOR: rgb(237,234,213); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 500 13px/22px 'Courier New', Courier, monospace; WHITE-SPACE: normal; FLOAT: none; LETTER-SPACING:
normal; WORD-SPACING: 0px; -webkit-text-stroke-width: 0px">                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_260_25269.html">
                        <img width="145" height="110" alt="这意淫速度也太快了吧" src="http://i1.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7068F3917DT20130808095921.jpg">
                        <span>这意淫速度也太快了吧</span>
                    </a>
                </div>
<div class="upbt">
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_193_25265.html">
                        <img width="145" height="110" alt="猛：我军空降战车开火" src="http://i0.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7066F3917DT20130808083611.jpg">
                        <span>猛：我军空降战车开火</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_235_25263.html">
                        <img width="145" height="110" alt="印度航母重要部件曝光" src="http://i2.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7065F3917DT20130808075932.jpg">
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_329_25251.html">
                        <img width="145" height="110" alt="中俄反恐联演终于开始了" src="http://i1.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7064F3917DT20130807101539.jpg">
                        <span>中俄反恐联演终于开始了</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_199_25250.html">
                        <img width="145" height="110" alt="我军这火力太强大了" src="http://i3.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7063F3917DT20130807094728.jpg">
                        <span>我军这火力太强大了</span>
                    </a>
                </div>
                        <span>冲绳民众愤怒了</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_198_25248.html">
                        <img width="145" height="110" alt="美军怕了练保护航母" src="http://i2.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7061F3917DT20130807084520.jpg">
                        <span>美军怕了练保护航母</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_260_25247.html">
                    
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    <img width="145" height="110" alt="日网友希望出云号永不沉 " src="http://i1.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7060F3917DT20130807082140.jpg">
     &nbinline !important; FONT: 500 13px/22px 'Courier New', Courier, monospace; WHITE-SPACE: normal; FLOAT: none; LETTER-SPACING: normal; WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_260_25246.html">
                        <img width="145" height="110" alt="日本准航母飞行甲板曝光" src="http://i3.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7059F3917DT20130807073946.jpg">
                        <span>日本准航母飞行甲板曝光</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_193_25235.html">
                        <img width="145" height="110" alt="69式仍是我军单兵利器" src="http://i0.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7058F3917DT20130806121220.jpg">
                        <span>69式仍是我军单兵利器</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_329_25233.html">
                        <img width="145" height="110" alt="我军参演装备出情况了" src="http://i3.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7057F3917DT20130806114020.jpg">
                        <span>我军参演装备出情况了</span>                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_34780_25232.html">
                        <img width="145" height="110" alt="辽南船厂加紧快造056舰" src="http://i2.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7056F3917DT20130806104443.jpg">
                        <span>辽南船厂加紧快造056舰</span>
                    </a>
                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_33676_25231.html">
            20monospace; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px" />                </div>
<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_193_25230.html">
                        <img width="145" height="110" alt="我军装备充气式歼11" src="http://i1.sinaimg.cn/jc/http/slide.mil.news.sina.com.cn/U1335P27T162D7054F3917DT20130806093010.jpg">
                        <span>我军装备充气式歼11</span>
                    </a>
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<div class="upbt">
                    <a target="_blank" href="http://slide.mil.news.sina.com.cn/slide_8_199_25228.html">
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