眼睛注视33cm处灯光，观察角膜反光点，反光点如果在角膜的中央鼻侧，为（）kappa角，在中央颞侧，为（）kappa角。
参考答案：正；负
氨基苷类抗生素的作用部位主要是在（）。
A.细菌核蛋白体30S亚基
B.细菌核蛋白体50S亚基
C.细菌的细胞壁
D.细菌的细胞膜
E.以上说法全不对
All of the following negatively affect shareholders’ proxy voting rights, EXCEPT:（）
A. allowing proxy voting by means other than a paper ballot.
B. requiring attendance at the annual meeting.
C. scheduling the annual meeting on the same day as other companies in the area, but in different locations.
