题目

人体中含有50多种元素，某些元素缺乏后会对人体健康产生影响。下列说法错误的是（） A . 缺锌会引起食欲不振，生长迟缓，发育不良 B . 缺钙会使幼儿及青少年患佝偻病 C . 缺碘会引起甲状腺疾病 D . 缺铁会引起坏血病 答案：DThe couple _____ last year. They had lived together for twenty years, though.A．broke outB．broke awayC．broke upD．broke down