在實際應用中，表示 X 線強度的是
E
暫無解析
題目：提高質量保證
Yoursister_______tovisityouquiteofen,didn'tshe?
Idon’tknow______ashow.Canyoutellme?
—Haveyoufinishedthework?
—Notyet,butnomatterhowharditis,we'llkeep___untilwemakeit.
WhileIwaswaitingforher,Ikilledtime____lookingintheshowwindows.
