第15题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. The man needs more skills. B. Vocabulary is sufficient for communication. C. The man should practice to use the vocabulary. D. Vocabulary is a necessary part for communication. 参考答案:C 答案解析:[听力原文] M:I have got confused that why I still can not communicate with the foreign guests in Engl
第35题: [单项选择]按照氟牙症釉质病损的程度分类中度为() A. 釉质上的牙面上为黄褐色、棕褐色 B. 釉质上的白色程度较明显,呈纸白色 C. 釉质上的白色不透明斑块,失去光泽 D. 釉质表面大部分受累而变色,常有巨大的凹坑状缺损,多见于唇颊面 E. 釉质表凹坑状缺损明显,牙冠失去正常外形,对美观和功能都有严重影响 参考答案:A