单选题 At that time leukemia was almost inevitably ______, but today, more than half of the people with leukemia get a cure.

【正确答案】 A

【答案解析】lethal“致死的，死亡的”符合题意。其他三项：poisonous有毒的；awesome敬畏的，可怕的；terrific令人恐怖的。