【单选题】【消耗次数:1】
Our civilization cannot be thought of as ____ in a short period of time.
to have been created
to be created
having been created
being created
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相关题目
【单选题】 Our civilization cannot be thought of as _____in a short period of time.
①  to have been created
②  to be created
③  having been created
④  being created
【单选题】 Our country is trying to _____ the serious problems created by the environment al pollution.
①  comply with
②  cope with
③  cope to
④  comply to
【单选题】 More local ( )will be created, particularly in service industries.
①  employee
②  ?employ
③  ?employer
④  ?employment
【简答题】 Translate the following sentence into ChinesePrejudice against women violates the fundamental principle that all people are created equal.
【单选题】 At this stage we cannot tell you____ you have been selected for the job or not.
①  unless
②  although
③  whenever
④  whether
【单选题】 If the whole program __________ beforehand, a great deal of time and money would have been lost.
①  was not planned
②  were not planned
③  would not be planned
④  had not been planned
【单选题】 Having been asked to speak at the convention __________
①  some notes were prepared for Dr. Smith
②  Smith prepared some notes
③  The convention members were pleased to hear Dr. Smith
④  Some notes were prepared by Dr. Smith
【判断题】 A: Have you been wasting time on computer games again? B: Not really. I’ve been studying a lot and I need a break.
①  正确
②  错误
【单选题】 Without his timely help, we _____ all these in such a short period of time.
①  dont accomplish
②  have not accomplished
③  should not accomplish
④  would not have accomplished
【单选题】 ________work and creative activities have been important drivers of human progress is deeply rooted in our social values.
①  How
②  Whether
③  That
④  Why
随机题目
【单选题】 全瓷粘接修复常用的方式,不包括()
①  全瓷嵌体
②  全瓷贴面
③  陶瓷冠
④  全瓷粘接桥
⑤  以上均是
【单选题】 玻璃陶瓷的特点,错误的是()
①  粘接强度低
②  半透性好
③  折光率接近牙釉质
④  可以被HF酸蚀
⑤  遮色性好
【单选题】 氧化铝陶瓷的特点,错误的是()
①  透光性极佳
②  强度高
③  透光性差
④  HF不能酸蚀
⑤  遮色效果好
【单选题】 CAD/CAM全瓷桥牙体预备要点,基牙保证()以上均匀的肩台宽度
①  0.5mm
②  1mm
③  1.5mm
④  2mm
⑤  2.5mm
【单选题】 CAD/CAM玻璃陶瓷的特点,说法错误的是()
①  半透明性
②  粘结强度低
③  与天然牙相似的磨耗
④  方便快捷
⑤  美观性高
【单选题】 氧化锆基底全冠修复特点,说法错误的是()
①  强度高,可以用于后牙单冠修复
②  美观效果好,有足够的饰瓷空间
③  遮色效果不佳
④  可以制作4单位固定桥修复
⑤  可用于严重变色牙的美观修复
【单选题】 CAD/CAM一体化氧化锆全瓷桩核,根管预备时不超过根管直径的()
①  1/5
②  1/4
③  1/2
④  1/3
⑤  2/3
【单选题】 3MLavaCAD/CAM系统瓷块的强度高,内冠最薄可为()
①  0.3mm
②  30mm
③  3mm
④  300mm
⑤  1mm
【单选题】 首次提出除用于树脂材料外的粘接技术是()
①  第三代
②  第四代
③  第五代
④  第六代
⑤  第七代
【单选题】 一步法粘接技术是()
①  第三代
②  第四代
③  第五代
④  第六代
⑤  第七代