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            <title>《高中数学辅导》 主讲教师 李常凌8</title>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第3讲4</title>
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            <itunes:duration>13:34</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第3讲3</title>
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            <itunes:duration>09:24</itunes:duration>
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            <title>高一第3讲2</title>
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            <itunes:duration>05:54</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第二讲17</title>
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            <itunes:duration>03:52</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第3讲1</title>
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            <itunes:duration>16:10</itunes:duration>
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            <title>高一第二讲16</title>
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            <itunes:duration>03:37</itunes:duration>
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            <title>高一第二讲15</title>
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            <itunes:duration>02:23</itunes:duration>
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            <title>高一第二讲14</title>
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            <itunes:duration>02:25</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第二讲11</title>
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            <itunes:duration>10:13</itunes:duration>
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            <title>高一第二讲12</title>
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            <itunes:duration>04:21</itunes:duration>
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            <title>高一第二讲13</title>
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            <itunes:duration>07:45</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第二讲5</title>
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            <itunes:duration>13:21</itunes:duration>
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            <title>高一第二讲7</title>
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            <itunes:duration>13:29</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第二讲2</title>
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            <itunes:duration>11:03</itunes:duration>
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            <title>高一第3讲8</title>
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            <title>高一第3讲9</title>
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            <itunes:duration>03:05</itunes:duration>
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            <title>高一第3讲10</title>
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            <itunes:duration>04:43</itunes:duration>
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            <title>高一第3讲12</title>
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            <itunes:duration>03:15</itunes:duration>
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            <pubDate>Thu, 12 Nov 2009 08:18:39 +0800</pubDate>
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            <title>高一第3讲13</title>
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            <title>高一第4讲3</title>
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            <title>高一第4讲4</title>
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