Should choose the flower of quietly elegant of design and color , fragrance right now , if 6 tang chang cattail , orchid , jin jie , flowers , rose reachs carnation , wait 此时应选用花色、香味淡雅的鲜花，如唐菖蒲、兰花、金桔、六出花、玫瑰及康乃馨等。
2.
Under the foreign exchange cattail , there are still two markets a black market and en called ndf market , while three marks have great differences 摘要在外汇管制的条件下，与我国正式外汇市场并存的还包括境内的外汇黑市和境外的人民币远期不交割合约市场。
3.
Through monitoring the growth of wetland plants mainly common reed and cattails and assaying o g and tph in soils according to timelapse , the function of wetland degrading oil pollution was validated . the petroleum pollutants in the surface layer of soil were decreased by eluviations and degradation 通过监测湿地植物芦苇香蒲等的长势和化验土壤中总石油烃tph及油和脂o g随时间的变化，以探讨湿地状态对石油污染和植物长势的影响。
4.
Through monitoring the growth of wetland plants mainly common reed and cattails and assaying o g and tph in soils according to time ? ? lapse , the function of wetland degrading oil pollution was validated . the petroleum pollutants in the surface layer of soil were decreased by eluviations and degradation 通过监测湿地植物芦苇香蒲等的长势和化验土壤中总石油烃tph及油和脂o g随时间的变化，以探讨湿地状态对石油污染和植物长势的影响。
5.
For some wetland plants such as reed and cattail , a small quantity of petroleum pollutants did not form deadly menace , their growing tallness was positive correlated with water deepness . therefore , wetland buffer can be constructed to reduce the impact of petroleum pollution and plant adaptive wetland vegetation so as to improve the environment of oil field 结果显示：湿地环境对土壤中的石油污染有明显的降解作用，芦苇等挺水植物的生长量与积水深度呈正相关，土壤中少量含油并不构成对湿地植物生长的威胁。
