【評論主題】【題組】9. I’ll write a report about Helen Keller, an American writer who lost her s____t.
【評論內容】補習學校=進修學校,所以算是正規教育,
【評論主題】16. 設k>0,平面E1:x+ky+z-2=0與平面E2:x+√2y-z+1=0的夾角為,則k為 (16) 。
【評論內容】歸仁是釋迦