肛瘘内口大多数位于()
A.肛窦内
B.直肠瓣处
C.肛提肌处
D.肛管
E.肛门缘
参考答案：A
科学研究是人类的一种具有（）的活动。
An analyst does research about shareholders voting. With respect to shareholders voting for a candidate for the board of directors, which of the following is most likely to allow shareholders to direct their total voting rights to specific candidates（）
A. Statutory voting.
B. Cumulative voting.
C. Proxy voting.
