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maintenance inflict identification unemployment intensify decay idiom outbreak idleness beam overwhelming shipwreck graphite thrifty preset misfortune untie compression immortal weary roam transplant impartial vocal

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1849 、 静摩擦 staticfriction 1850 、 颈轴承 journalbearing 1851 、 颈缩 necking 1852 、 频带宽度 bandwidth 1853 、 频率 frequency 1854 、 头座 headstock 1855 、 阈值；临界值

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Half Duplex Half duplex is a transmission path capable of transmitting signals in both directions, but only in one direction at a time. HDLC high-level data link control Header The header is control i

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SSS 2008-04-14

This is Scientific Americans 60-Second Science, I'm Cynthia Graber. This will just take a minute. In vitro fertilization(试管受精) efforts can be helped by oddly enough oral contraceptives .That's the finding from Tel Aviv University, site of the

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每日一词【830】damage control

今天我们要学的词是damage control。 Damage control, 意思是尽量减少破坏的程度。美国晚间脱口秀主持人莱特曼因为卷入性丑闻不断道歉。David Letterman is in damage control mode, 莱特曼努力减小不良影响。

New Internet protocol to undergo test

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