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bece-522	doi.org	https://doi.org/10.28102/n.cnki.ncjyb.2009.0
bece-522	doi.org	https://doi.org/10.28102/n.cnki.ncjyb.2009.003754
bece-522	doi.org	https://doi.org/10.28102/n.cnki.ncjyb.2009.003754
bece-522	doi.org	https://doi.org/10.3969/j.issn.16734289.2004.06.026
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfd2003jyky200306002.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotaljaos201835023.htm
bece-522	baijiahao.baidu.com	https://baijiahao.baidu.com/s?id=165335665
bece-522	www.cqvip.com	http://www.cqvip.com/qk/96925x/199410/1
bece-522	doi.org	https://doi.org/10.3969/j.issn.10047549.2003.02.005
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal
bece-522	hyxx.zledu.com	http://hyxx.zledu.com/photos/201409/82_20
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotallnjy200403022.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotalxzrk200603007.htm
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal
bece-522	doi.org	https://doi.org/10.3969/j.issn.1673-4289.2004.06.026
bece-522	doi.org	https://doi.org/10.3969/j.issn.1673-4289.2004.06.026
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfd2003-jyky200306002.htm
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfd2003-jyky200306002.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-jaos201835023.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-jaos201835023.htm
bece-522	baijiahao.baidu.com	https://baijiahao.baidu.com/s?id=1653356659616456476&wfr=spider&for=pc
bece-522	baijiahao.baidu.com	https://baijiahao.baidu.com/s?id=1653356659616456476&wfr=spider&for=pc
bece-522	www.cqvip.com	http://www.cqvip.com/qk/96925x/199410/1003301541.html
bece-522	www.cqvip.com	http://www.cqvip.com/qk/96925x/199410/1003301541.html
bece-522	doi.org	https://doi.org/10.3969/j.issn.1004-7549.2003.02.005
bece-522	doi.org	https://doi.org/10.3969/j.issn.1004-7549.2003.02.005
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal-rmjy200607002.htm
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal-rmjy200607002.htm
bece-522	hyxx.zledu.com	http://hyxx.zledu.com/photos/201409/82_20140924092516187.doc
bece-522	hyxx.zledu.com	http://hyxx.zledu.com/photos/201409/82_20140924092516187.doc
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-lnjy200403022.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-lnjy200403022.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-xzrk200603007.htm
bece-522	www.cnki.com.cn	http://www.cnki.com.cn/article/cjfdtotal-xzrk200603007.htm
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal-shjz2009z2096.htm
bece-522	www.cnki.com.cn	https://www.cnki.com.cn/article/cjfdtotal-shjz2009z2096.htm