Questions26-30are based on the following chart : 　　Cigarette Smoking by Grade Level: 2005-2009

 
　　(说明：2005年为白框，2007年为灰框，2009年是黑框，扫描问题无法显示。)

Which grade had the highest percentage of smokers in 2005（）

A．analyzed in a report
B．summed up in a figure
C．organized into a chart
D．kept in its raw state

A．discussions
B．claims
C．announcements
D．opinions