公务员在执行公务时需要回避的人群有（）。
A.近姻亲关系
B.有夫妻关系
C.直系血亲关系
D.与本人有利害关系的人
参考答案：A, B, C, D
All of the following violate Standard Ⅰ(C), Misrepresentation, EXCEPT:（）
A. copying a proprietary computerized spreadsheet without seeking authorization from their creators.
B. presenting factual information published by recognized statistical reporting services without acknowledgment.
C. using excerpts from reports prepared by others with minor word changes without acknowledgment.
表示粉体流动性的参数有哪些？怎样改善粉体的流动性？
