A、 Schematics must be readable to a normal visioned person, so legends, symbols, devices, codes, etc., should be of sufficient size. The schematic diagram should be designed to turn over the page when the content is necessary.
B、 The schematic diagram must be of sufficient size that legends, symbols, devices, codes, etc., are readable by persons with normal vision. Turn-page schematic diagrams shall be avoided to the extent practical.
C、 The schematics, symbols, devices, codes, etc. must be legible, so people with normal vision should avoid turning the schematic pages as much as possible.
答案：B
A、 Schematics must be readable to a normal visioned person, so legends, symbols, devices, codes, etc., should be of sufficient size. The schematic diagram should be designed to turn over the page when the content is necessary.
B、 The schematic diagram must be of sufficient size that legends, symbols, devices, codes, etc., are readable by persons with normal vision. Turn-page schematic diagrams shall be avoided to the extent practical.
C、 The schematics, symbols, devices, codes, etc. must be legible, so people with normal vision should avoid turning the schematic pages as much as possible.
答案：B
A. Quickly move the throttle to the middle position.
B. Move the throttle quickly to the idle position.
C. Push the throttle quickly to the neutral position.
A. Make sure that you can see the oil level through the sight gauge.
B. Make sure that the oil quantity is shown on the oil level indicator.
C. You can read the oil level on the oil level gauge.
A. 应使用单独的阴影图案来区分供应、压力、回流等。在整个手册中，每个单独系统应使用相同的编码。
B. 应使用单独的阴影模式来区分供应、压力、返回等。每个单独的系统应在整个手册中使用相同的编码。
C. 应使用不同的阴影图案来区分供油、压力、回油等。整个手册中，同一个系统应使用相同的阴影编码。
A. Hydraulic fluid has no effect on painted surfaces.
B. Hydraulic fluid has positive influence on painted surfaces.
C. Hydraulic fluid has passive influence on painted surfaces.
A. In either case, a chart will be included in showing standard symbols used throughout the manual.
B. In both cases, a figure will be contained to show the normal symptoms used in the whole manual.
C. Through the handbook, a form shall be used to show the normal signs in these two cases.
A. 将O形环安装在锥形轴承的内部凹槽中。
B. 将O形环安装在圆柱形轴承的中部凹槽中。
C. 将O形环安装在球形轴承的内部凹槽中。
A. 供气系统被多个子系统共用，能够为水箱加压以确保流体的流动。
B. 空气供应系统是某一个子系统独用的部分，其作用是为供应罐加压以确保流体流动。
C. 空气供应系统是多个子系统共用的部分，其作用是为供应罐减压以延缓流体流动。
A. 确保管道没有被堵塞。
B. 确保封圈没有被腐蚀。
C. 确保油路没有泄漏。
A. 不要在热的表面上使用这些清洁剂。
B. 不要在热的表面上使用密封剂。
C. 不要在热的漆面上使用除味剂。
A. Tow the plane to a safe area where you can use the standard process.
B. Pull the vehicle to a safe area where you can use the standard procedures.
C. Taxi the car to a safe area where you can use the normal procedures.
