题目内容：
Whichofthefollowingbestsummarizesthetext?
A．Readingexercisesourbrainmorethanwatchingtelevisionbuttelevisionisanecessit B．Ifwewanttomakefulluseofourbrain,wehavetounderstanddifferentfunctionsoftherightandlefthemispher
C．Byanalyzingimageryandlexicalsystems,thewriterthinksitismorebeneficialtoustoreadthantowatchtelevisio
D．Bothimageryandlexicalsystems,whichareassociatedwithlanguagelearning,seemessentialforthehighestlevelsofthough
参考答案：
答案解析：