It seems to some experts that 56. , youku. and tudou. 90% of the video market in this area.
A. make up
B. put up
C. set up
D. take up
网友回答
(答案→)A. make up
B. put up
C. set up
D. take up
解析：考察词组。Make up 组成，构成 ，弥补，化妆 ,占据 put up 举起，张贴，留宿 set up建立 take up 占据（时间，空间）
句意为，看起来对一些专家来说，56，优酷，土豆网站占据着视频市场上的百分之九十的份额。