A、 When there is trichloroethylene,you shouldn＇t worry about it.
B、 Trichloroethylene is good for health.
C、 Trichloroethylene is hazard for health.
答案：C
A、 When there is trichloroethylene,you shouldn＇t worry about it.
B、 Trichloroethylene is good for health.
C、 Trichloroethylene is hazard for health.
答案：C
A. The swivel nuts on both valves engage threads on an internal stem that loosens or draws tight the valve stem to a metal seat.
B. The rotating nuts on both valves are meshed with the threads on the inner valve stud, so that the valve stud is loosened or tightened to a metal valve base.
C. The swing nuts on both valves engage with the threads on the internal spool, allowing the spool to loosen or tighten to the metal seat.
A. Make sure that the parts or surface layer are dry and free from uncontamination.
B. Make sure that the parts or surface layer are dry and free from contamination.
C. Make sure that the parts or surface lamination are dry and free from contamination.
A. LIGHTS
B. COMES IN
C. COMES ON
A. The Introduction Section of the Maintenance Manual should contain either a list of vendor publications or refer to the location of such lists whether they are included in component descriptions or provided in separate documents.
B. The Introduction Section of the Maintenance Manual should contain either a list of vendor publications or refer to the sequence of such lists whether they are included in system descriptions or provided in separate documents.
C. The Introduction Section of the Maintenance Manual should contain either a list of vendor publications or refer to the location of such lists whether they are included in system descriptions or provided in separate documents.
A. Tighten the nuts between 55 to 75 pound-inches due to ATA32-05-10.
B. Tighten the nuts between 55 to 75 pound-inches according to ATA32-05-1.
C. Tighten the nuts above 55 or 75 pound-inches according to ATA32-05-10.
A. Move the throttle quickly to the idle position
B. Quickly move the throttle to the middle position
C. Push the thorttle quickly to neutral position
A. Use some auxiliary screws to assemble the unit temporarily
B. You shall use some additional screws to install the unit permanently
C. Temporarily disassemble this unit using some auxiliary screwdrivers.
A. 这将使用户可以通过检查一份清单来识别受影响的飞机,而不必检查每个单独的持续适航计划以确定适用性。
B. 这将允许用户通过检查一份清单来找出受影响的飞机,或者也可以检查每一个持续适航计划的适用性。
C. 这将使用户可以通过检查一份清单来判断被影响飞机的有效性,而无需检查每个独特的持续适航计划。
A. 压力值必须低于800千帕。
B. 压力值必须等于800千帕。
C. 压力值必须超过800千帕。
A. GOES
B. LEAVES
C. GETS
