Barack Obama told millions ______ him that his grandmother's influence on ______ he is and the way he views the world was significant.

A．watch; how

B．watching; who

C．watched; where

D．to watch; what

射线检测人员的未经矫正或经矫正的近（距）视力和远（距）视力应不低于5.0（小数记录值为1.0），测试方法应符合GB11533的规定。从事评片的人员应每2年检查一次视力。（×）