第6题: [单项选择]某慢性支气管炎、肺气肿患者，近1周来出现神志恍惚、嗜睡，血气分析结果为：pH 7.26，PaO2 55mmHg，PaCO283mmHg，HCO3-24mmol/L，BE+3mmol/L。 对该患者的治疗哪项应慎重 A. 补充碳酸氢钠 B. 改善通气 C. 氧疗 D. 控制感染 E. 祛痰 参考答案:A
第10题: [单项选择]当红、橙、黄、绿、青、蓝、紫七种光会聚一点时，该点呈( )。 A. 黄色 B. 绿色 C. 黑色 D. 白色 参考答案:D 答案解析:[解析] 由一束白光穿过三棱镜投射到白屏幕上后，分散为红、橙、黄、绿、青、蓝、紫7种色带。根据光路可逆原理，当红、橙、黄、绿、青、蓝、紫七种光会聚一点时，该点呈白色。
第14题: [单项选择]什么形成牙周膜( ) A. 牙乳头 B. 牙板剩余 C. 牙囊 D. 牙蕾 E. 成釉器 参考答案:C 答案解析:[解析] 牙周膜从牙囊发育而来，当牙根形成时，首先从牙囊中出现一丝细的纤维形成牙周膜。
第15题: [简答题]很多人认为有必要举行口语考试，理由是…； 2．也有人持不同的意见，…； 3．我的看法和打算。 参考答案:
Is a Test of Spoken English Necessary
In many kinds of English tests such as CET (College English Test), TEM (Test for English majors), etc. a test of spoken English will be optional. Some people consider that it is unquestionably necessary to hold a test of spoken English in China because spoken English is as important as written English. Both of them are effective communication ways for English speakers. But some- times even those top students who are good at grammar and writing skills find that it is difficult to express their thoughts freely when speaking. A test of spoken English will make students attach more importance to oral English, and thus help them with their communicating skills.
On the other hand, there are also people who hold that good reading, writing and translating skills would be enough for the average English learners. College students are already under great pressure from their study. Another required test will be a burden to them.
In my opinion, I believe that a test of spoken English will do more good than harm. And I shall make all my efforts to practice and improve my spoken English.
