第13题: [单项选择]The professor _________ his habit of getting up early in the morning to do writing all his life. A. projection B. retained C. retailed D. revitalized 参考答案:B 答案解析:考点 词语辨析题。要求能够正确辨析几个形式和意思容易混淆的单词。projection的意思见上题； retain“保持，保留”；retail“零售，转述”；revitalize“使恢复元气；使有新的
第34题: [单项选择]Although customers keep complaining about their poor service, they've made no ______ to make any improvement. 参考答案:C 答案解析:[解析] [C]和[D]都可以与make连用，但只有[C]符合题意，make no attempt to do sth．意为“不努力做某事”，而make progress意为“取得进步”，与题意不符，
第35题: [单项选择]下列哪些食品含腆最丰富（） A. 海带、紫菜 B. 虫草叶蔬菜 C. 豆类制品 参考答案:A
