The position statement says that ongoing research is needed to assess the efficacy of these strategies.
有声明说，正在进行的研究有必要对这些策略的功效进行评估。
This paper discusses the necessity of the substitution cashflow statement for financial position statement and explores the problems concerning the structure design and items setting up.
论述了铁路运输企业用现金流量表取代财务状况变动表的必要性，对编制现金流量表所采用的结构及项目设置等问题进行了探讨、分析。
American Gastroenterological Association Medical Position Statement on the management of gastroesophageal reflux disease.
美国胃肠病医学协会的胃食管反流疾病管理立场声明。
American Gastroenterological Association Medical Position Statement on the management of gastroesophageal reflux disease.
美国胃肠病医学协会的胃食管反流疾病管理立场声明。
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