单选题 One room schools, with all subjects being taught to all grades at the same time, simply ______ when better transportation permits specialized spaces and specialized teaching.
【正确答案】 C
【答案解析】[解析] 句子大意为：当较好的交通设施提供了专业的教学空间和专业化教学时，这种只有一间教室，同时教所有年级所有科目的学校就被解散了。A项resolve“决心，决定，决心要”；B项absolve“宣布免除”；C项dissolve“解散，使终结”；D项solve“解决，解答”；所以C项符合题意。