1973. If the instrument does not operate correctly, do a test

A. A maximum distance of 50 feet is required between consumable materials and the work area.

B. Keep flammable materials at a minimum distance of 50 feet from the work area.

C. Explosive materials must be kept at least 50 feet away from the work area.

A. 在一块不需要承力的金属上,可以在某一点处切割一个直径为几英寸的孔,孔的周围用法兰连接,使其具有刚度

B. 在一块金属上,可以在不需要承力的某一点处切割一个直径为数英寸的孔,孔的边缘折边可以使其具有刚性

C. 在一块不需要承力的金属上,可以在一处切割几个直径为数英寸的孔,孔的边缘用凸缘连接,使其产生刚性

A. FEEL

B. TREAT

C. TOUCH

A. When designing a schematic diagram, it may be necessary to give consideration to the details necessary to make the schematic diagram self-evident and the simplicity of easy reading and nderstanding;

B. In designing schematic diagrams, it may be necessary to compromise between detail that is necessary to make the diagram selfexplanatory, and simplicity that is essential for ease of reading and understanding;

C. In designing schematic diagrams, it may be necessary to synchronize between detail that is necessary to make the diagram selfexplanatory, and simplicity that is essential for ease of reading and understanding;

A. Pressurize the Pneumatic System.

B. Depressurize the hydraulic System.

C. Depressurize the Pneumatic System.

A. 确保发动机进气道无松动

B. 确保发动机进气道无松动物

C. 确保发动机进气道无外来物

A. 维护手册的简介部分应包含供应商出版物的清单,或提及此类清单的位置,无论这些清单是包含在系统说明中还是在单独的文档中提供的

B. 维护手册的简介部分应包含供应商出版物的清单,并提及此类清单的位置,无论这些清单是包含在系统说明中还是在单独的文档中提供的

C. 维护手册的简介部分既不包含供应商物的清单,也未提及此类清单的位置,无论这些清单是包含在系统说明中还是在单独的文档中提供的

A. Operate the dimmer switch and make sure that the intensity of the light changes.

B. Control the light knob to ensure that the light strength changes.

C. Turn the light regulator on to adjust the luminous intensity.

A. 正确的标点符号很重要,因为它表明了文本的不同部分是如何联系在一起的,并防止了歧义。

B. 正确的标识很重要,因为它表明了文本的不同部分是如何构成的,并防止了误解。

C. 正确的符号很重要因为它展示了文本不同部分的构成情况,并防止了错误。

A. 风挡出口是在机长和副驾的挡风口前面

B. 风挡出口是在机长和副驾遮光板的前面

C. 风挡出口是在机长和副驾操作板的前面