1 二级目(mù )录(lù )泛(fàn )站主(zhǔ )页连(lián )接 黑帽SEO技术(shù )站(zhàn )群(qún )之(zhī )间(jiān )做连接(jiē ),底子都是单(dān )向(xiàng )连接(jiē ),具体单向连接是不是查(chá )找引(yǐn )擎会当(dāng )作采(cǎi )购的连(lián )接而赏罚(fá )尚不可知,不过依据查找引擎的一些体现,好像(xiàng )对单向连(lián )接有(yǒu )必定(dìng )的办(bàn )法(fǎ )很明(míng )显的一(yī )个比(bǐ )如是(shì )检索quot
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