题目

— So, how is your new roommate ? — She really ____. She always making loud noises at midnight and when I remind her , she always makes rude remarks. A. turns me over      B. turns me down     C. turns me off      D. turns me out 答案:C 解析: turn sb.over :把……移交,把……交给;turn sb. down:拒绝;turn sb.off :使对(某人)感到厌烦、使不感兴趣;turn sb.out:驱逐,赶走。根据句意“她总是在午夜弄出很大的响声,我提醒她时,她还总是说些粗鲁的话”,由此可知她是使我烦透了,选择C项。如果血液中缺乏亚铁离子,就会造成缺铁性贫血.市场出售的某种麦片中含有微量的颗粒极细小的还原铁粉,这些铁粉在人胃液(胃酸的主要成分是HCl)作用下转化成亚铁盐,这个转化的化学方程式是________________.
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