Among all the computer pointing devices, touch screen is the most expe

Amongallthecomputerpointingdevices,touchscreenisthemostexpensiveone.（）

True

False

NotGiven

答案及解析：利用题干句中的特征词touchscreen作为线索,在文中查到相关句“Othercomputerpointingdevicesincludelightpens,graphicstable tsandtouchscreen,butthemousestillourwork-horse.”,但是文中并没有提到触摸屏是所有设备中最贵的一种。