The occurrence of benign change might make the patient gain the long time remission (P < 0. 05).

复发瘤良性变的发生有助于患者获得长期缓解（P＜0．05）。

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Accordingly, the tested 23 soils, except the paddy rice soil No. 20 from Qianjiang Hubei Province, had low risk of P leaching occurrence.

供试的23个土壤，除了采自湖北潜江的20号水稻土存在比较大的磷素淋失风险，其余土壤发生磷素淋失的风险很小。

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The metastasis in different region had a different occurrence rate ( P< 0.01), and the chest was the most frequent metastasis region.

不同区域骨转移分布的发生率有差别（P＜0．01），以胸肋部最为多见；

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