A、 Do not make the pressure became less than (or more than)20 psi.
B、 Do not let the pressure become less than (or more than)20 psi.
C、 Do not let the pressure close less than (or more than) 20 psi.
答案:B
A、 Do not make the pressure became less than (or more than)20 psi.
B、 Do not let the pressure become less than (or more than)20 psi.
C、 Do not let the pressure close less than (or more than) 20 psi.
答案:B
A. 从冷冻室里取出来之后,铆钉必须在15分钟以内完成装配
B. 从冷冻室里取出来之后,铆钉必须放置15分钟以后才能装配
C. 从冷冻室里取出来15分钟之内不可以装配
A. 避免使用这些词来表达他们论证过的意思。
B. 一定要使用这些词的批准的意思。
C. 一定要用这些词来表达他们认可的方法。
A. 发行人栏目,出版物名称,飞机型号和发行或修订日期都应该出现在活页文件页面中。
B. 制造商的刊头,出版物标,飞机型号和发行或修订日期必须出现在活页文件的所有页面。
C. 生产商发行人栏目,出版物名称,飞机类型和发布或修订日期都应该出现在活页文件所有页面中。
A. 为了简化表示和易于理解,应用系统应该分为系统功能而不是总体主原理图。互连到其他系统应明确指出。
B. 为了简化表示和易于理解,复杂系统应该分为系统功能而不是总体主原理图。互连到其他系统应明确指出。
C. 为了简化表示和易于理解,复杂系统应该分为系统原理而不是总体主原理图。互连到其他系统应明确指出。
A. It is fine to use alternative materials
B. It is forbidden to use alternative materials
C. The alternative materials are not unserviceable
A. Measure the Outside Air Temperature and the temperature in the cockpit with a thermometer.
B. Do the Outside Air Temperature and the temperature in the cabin with a barometer.
C. Measure the Surrounding Air Temperature and the temperature in the cockpit with a thermometer.
A. 要先安装螺钉(10),才能安装盖组件(9)
B. 要拆下盖组件(9),首先要拆下这四个螺钉(10)
C. 要拆下螺母(9),首先要拆下这四个螺栓(10)
A. When the indicator is visible, stop the pump.
B. When the indicator comes on stop the pump.
C. Stop the pump unless the indicator comes into view.
A. 飞机保持适航和安全飞行的基础是由制造商决定的,当然也需要定期检查和维护。
B. 按照飞机制造商的要求运行飞机,辅以定期维护和检查可以保持飞机的适航性。
C. 按照制造商的意图使用飞机,结合良好的检查和维修实践,形成了确保飞机保持适航和安全操作的基础。
A. Section 1 of the Pilot's Operating Handbook shall introduce basic data and information of general interest to the pilot. The data and information is useful in loading, sheltering, handling, and routine preflight checking of the airplane.
B. Section 1 of the Pilot's Operating Handbook shall present basic data and information of general interest to the pilot. The general interest is useful in loading, sheltering, handling, and routine preflight checking of the airplane.
C. Section 1 of the Pilot's Operating Handbook shall present basic data and information of general interest to the pilot. The pilot is useful in loading, sheltering, handling, and routine preflight checking of the airplane.