文档介绍：actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under其描述的主题不贴切。
B：交换外部时，尽量要求对方以你所优化的关键字作为的关键字
C：内部：使的结构合理化，每个网页间是相通的。
5、网页大小：
网页占的空间尽量少。一个比较理想的页面是不超过15K的大小。
6、网页内容：
每个网页都要有实际的内容。一般页面的字数最好是在200~500字左右。
7、关键字密度及位置：
密度：关键字的密度最好是不要超过文本数的3%或者更少。
位置：A:Title B:顶部 C：低部
8、提交：
向多个搜索引擎或者目录主动提交你的。
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adher