从项目评价文献的角度看，比重最大的研究领域是（）。
A.项目评价实证研究
B.项目评价方法研究
C.项目评价综述研究
D.项目评价案例分析
参考答案：B
when the dispute over duty payment arises between the duty payer and the Customs, the duty payer should first pay the duty and then, within ______ days of the issuance of the duty memo, apply to the Customs in writing for a reconsidertation of the case.
A．10 daysB．20 daysC．30 daysD．50 days
试述 * * 镜检查的适应证。
