Conclusion MRI contrast agents, especially above superparamagnetic substance above, possess wide range research and development perspective.
结论MRI造影剂，尤其是超顺磁类造影剂具有广阔的研究和发展前景。
And there are similar system in Japan, England and France. There is wide-range research on the taxpayer litigation in the overseas theory of the Law.
纳税人诉讼产生并成熟于美国，日本、英国、法国等也存在类似制度，国外法学理论界亦对纳税人诉讼制度存在诸多探讨。
Chapter one reviews the research in this area at home and abroad, and raises the research purpose, range, research method and the significance.
第一章对国内外的研究概况做了简要回顾，并提出了本文研究目的、范围，研究方法及意义。
Chapter one reviews the research in this area at home and abroad, and raises the research purpose, range, research method and the significance.
第一章对国内外的研究概况做了简要回顾，并提出了本文研究目的、范围，研究方法及意义。
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