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document.write(' | 热点专题 | ');
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document.write('  Western Blot | ');
document.write(' 测序 | ');
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document.write(' | PCR | ');
document.write(' 蛋白质组学 | ');
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document.write(' | Pyrosequence | ');
document.write(' 基因功能 | ');
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document.write(' | 表达系统 | ');
document.write(' 标记/检测 | ');
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document.write(' | 核酸回收 | ');
document.write(' 质粒纯化 | ');
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document.write(' | 核酸纯化 | ');
document.write(' 转染 | ');
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document.write(' | miRNA | ');
document.write(' 生物芯片 | ');
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document.write(' | RNA干扰 | ');
document.write(' 干细胞 | ');
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document.write(' | 荧光定量PCR | ');
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