单选题 Do you know the fact that broad bean contain ______ that must be destroyed by cooking them at high temperature before eating them?

【正确答案】 D

【答案解析】[解析] 各项的意思是：flake“小而轻的薄片”；aroma“芳香，香味”；ether“醚，乙醚”；toxin“毒素”。根据句意判断，答案为D。