多选题
The cause of Mozart"s ______ is a long-standing medical ______: over the years, physicians have suggested more than 100 possibilities, including poisoning, malnutrition, kidney disease, and heart failure.
【正确答案】
A、D
【答案解析】[解析] ●冒号说明前后同义重复。
●第一空与poisoning，malnutrition，kidney disease，and heart failure(中毒、营养不良、肾病或心力衰竭)同义重复。demise死亡，bereavement丧失亲友，genius天赋。答案选A。
●第二空与more than 100 possibilities(超过100种可能)同义重复。enigma谜题，trial实验，phenomenon现象。答案选D。