下列哪些属于无效动素（）
A.提取、对准
B.伸手、移动
C.寻找、选择
D.装配、拆卸
参考答案：C
According to the Standards of Practice Handbook, members must make a reasonable inquiry into a client’s financial situation, and must do all of the following EXCEPT:（）
A. consider the suitability of investment recommendations for the client.
B. distinguish between fact and opinion when making recommendations.
C. update information on the client’ s situation at least semi-annually.
刷新频率的单位是（）。
