题目：大型复杂频率选择曲面机器人数字化加工技术研究

正确

错误

108~117.95MHZ

108~111.95 MHZ

112~117.95MHZ

人工在DME控制板上选择

在VAN控制板上DME显示窗中选择

FMC自动选择

自动与VOR/ILS频率配对和FMC自动选择

原始图像文件

单层矢量PDF文件

结构化XML文件

质量检验文件

材料去除率高

切削力低

热变形小

表面质量高

The dictionary is often used to determine the correct spelling of words, or to find out the accepted pronunciation. But such (67) is perhaps not the most important (68) an intellectual point of view. Dictionaries may, (69) , have social importance. It is often a matter of some (70) to the person using the dictionary that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not (71) .

Yet, (72) familiarity with the dictionary, the (73) person is likely to have many wrong ideas about it, and no real (74) of how to use it profitably, or (75) it correctly. For example, it is often believed that the (76) presence of a word in a dictionary is (77) that it is acceptable in good writing. Though most dictionaries have a system of marking words as (78) , or in use only (79) slang, many people, more especially if their use of a particular word has been (80) , are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been (81) of dictionaries a hundred years ago. For a long time after they were first (82) established in the eighteenth century, their aim was to (83) only what was used by the best writers, and all else was (84) , and the compiler frequently (85) that his dictionary contained no "low" words. Apparently this aspect of the dictionary achieved such importance in the mind of the average person the most people today are unaware (86) the great change which has taken place in the compilation of present-day dictionaries.