= "CHO BIÕT TÕ KHÃA CONST DÏNG ®Ó LΜM G×

205) = "Cho biÕt tõ khãa Const dïng ®Ó lµm g×?" (205, 1) = "Khai b¸o biÕn." (205, 2) = "Khai b¸o h»ng sè.”* (205, 3) = "Khai b¸o thñ tôc." (205, 4) = "Khai b¸o hµm" (205, 5) = "Khai b¸o kiÓu "