A、 Obey the safety precautions when you do work with high voltages.
B、 Obey the safety warnings when you do work with high impedance.
C、 Obey the safety cautions when you do work with high capacitance.
答案：A
A、 Obey the safety precautions when you do work with high voltages.
B、 Obey the safety warnings when you do work with high impedance.
C、 Obey the safety cautions when you do work with high capacitance.
答案：A
A. Wrap two tapes around the pipe connectors.
B. Wrap the pipe joints with tape twice.
C. Wind two layers of tape around the pipe joints.
A. 对改变飞机重量或平衡有显著效果的设备不需要列出。
B. 对飞机重量或平衡无显著影响的设备无须包含在此清单中。
C. 对飞机重量或平衡没有显著影响的设备需要列出。
A. The Boeing-777 airplanes are different from the previous Boeing series ones mainly in that they are flown by wires.
B. The difference between the Boeing-777 airplanes and the subsequent Boeing series is that they are operated by wires.
C. Fly-by-wire is the main difference between Boeing-777 airplanes and the subsequent Boeing series.
A. Acquire the flight data from the recorder.
B. Eliminate the tape about the information after flight.
C. Remove a recording of flight data from the tape.
A. Hand tools can be divided to four basic categories: kicking tools,holding tools,cutting tools,bending tools.
B. Hand tools can be divided to four basic categories:kicking tools,clutching tools,cutting tools,rolling tools.
C. Hand tools will fall into four basic categories: pounding tools,holding tools, cutting toolsand turning tools.
D. C.Hand tools will fall into four basic categories: pounding tools,holding tools, cutting toolsand turning tools.
A. If no tabs are used,an identification method should be supplied to facilitate the location of each system or section.
B. If tab dividers are not used,a method of identification shall be provided to permit easy location of each System or Chapter.
C. An identification way should be offered to locate the system and chapter easily if the dividers are improper.
A. Detach the sensor to establish a physical connection with the adjoining structure.
B. Install the sensor to block access to the adjacent structure.
C. Take out the sensor to reach to the neighboring structure.
A. 这个能使推力管理更好,并且能够减少燃油消耗。
B. 这个能使推力管理更好,并且能够减少燃油吸收。
C. 这个能使更好的推力被应用,并且能够减少燃油消耗。
A. Attach the aft cargo compartment forward bulkhead central panel.
B. Mount the front cargo compartment backward bulkhead center panel.
C. Fix the aft bulkhead forward panel to the forward cargo component.
A. 辅助结构包括前缘、后缘、翼尖、翼尖油箱和燃油或水单元隔板,不包括镀层/蒙皮。
B. 辅助结构包括前缘、后缘、翼尖、翼尖油箱和燃料或水电池背板,不包括板/皮。
C. 辅助结构包括前缘、后缘、翼尖、尖端燃料箱和燃料或水电池背板,不包括板/蒙皮。
