【单选题】How many pieces of baggage does the passenger check in?
【单选题】How many pieces of clothing need to be cleaned and ironed?
【单选题】Nearly three years of high school had gone by_____he finally realized the importance of studying hard.
【单选题】How many pieces of artwork are in the building?
【简答题】已知显示器的刷新频率(场频)为 85Hz ,分辨率为 800×600 ,显示器的行频是 ( )
【单选题】Nearly three years of high school had gone by______ he finally realized the importance of studyinghard.
【简答题】已知显示器的刷新频率(场频)为 85Hz ,分辨率为 800×600 ,显示器的行频是__________. [计算公式:行频 = 场频 * 垂直分辨率 *1.04 ( KHZ )]