第12题:[单选题] 以下哪项是对虚拟机的最佳描述( )。 A. 执行虚拟化软件测试程序的物理机 B. 通过软件模拟的具有完整硬件系统功能运行在完全隔离环境中的虚拟计算机系统,可以像物理机一样执行程序 C. 一种旨在提供网络故障切换和故障恢复功能的计算机工具 D. 一种软件计算机,其中封装了物理硬件 参考答案:B
第14题: [多项选择]Tom bas had an accident and is now in hospital. Write to express your concern and good wish. Marks will be awarded for content, organization, grammar and appropriacy. 参考答案: Dear Tom, I just can’t tell you how sorry I was to learn of yo,r accident. Your family tells ma that you are progressing nicely, and that you’ll be out of the hospital in about ten days. I’ m certainly relieved to know that! In the next day or so you’ll receive a little package from Margaret and me. I hope you like it, and that it will help to pass the time more pleasantly. With every good wish for your swift recovery. Sincerely, Bob
第39题: [单项选择]釉质晶体的硬度最大的是() A. 不成熟乳牙 B. 成熟乳牙 C. 年轻恒牙 D. 老年恒牙 E. 没有差别 参考答案:D 答案解析:此题是考查考生对于牙釉质硬度的了解,要记住不同牙之间、不同牙面之间的硬度有一定差异。牙萌出后硬度逐渐增加,所以老年恒牙>年轻恒牙>成熟乳牙>不成熟乳牙。