单选题 It is postulated that a cure for the disease will have been found by the year 2000.
【正确答案】 B
【答案解析】[解析] 句意：据推测，该疾病的治愈方法将在2000年面世。划线单词postulate意为“假定，假设”。B项assume意为“假定，假设”，互为同义词。challenge向……挑战。deduct扣除，减去；演绎。decree颁布法令。