A、 The equipment refrigeration system exchanges the key equipment cabinets and the equipment in the compartment.
B、 The equipment cooling system removes heat from the equipment in the main equipment center and the flight compartment.
C、 The equipment exchange system removes heat from the lower equipment center and the aft cargo compartment.
答案：B
A、 The equipment refrigeration system exchanges the key equipment cabinets and the equipment in the compartment.
B、 The equipment cooling system removes heat from the equipment in the main equipment center and the flight compartment.
C、 The equipment exchange system removes heat from the lower equipment center and the aft cargo compartment.
答案：B
A. Operation time should be recorded if the pump is in emergency .
B. When you use the emergency pump, record the time of operation.
C. When the pump is for emergency use, record the time of usage.
A. Check left engine inboard wing leading edge if have damage and dent before the aircraft takes off.
B. Check wing leading edge inboard left engine for damage and dent before the aircraft takes off.
C. Check the wing leading edge of left engine inboard for damage and dent before the aircraft takes off.
A. This is the maximum portion of flammable vapors in air. If the portion is bigger, when an ignition source touched the gas, it would cause the fire to be diffused.
B. This is the minimum volume of flammable vapors. If the volume is lower, when the gas contacted with an ignition source, the fire would not come out.
C. This is the minimum density of flammable vapors in air. If the density was lower, when an ignition source touched the gas, it would not cause the spread of flame.
A. Verify that the bleed air of the ground car can not lead to a wrong information.
B. Make sure that the exhaust from the ground cart does not cause an incorrect indication.
C. Make sure that the wrong indication is caused by the exhaust from the ground cart.
A. 打磨两条线之间的孔洞区域。
B. 在两条线的交点上钻一个孔。
C. 通过孔洞排空两条管路。
A. Remove the failure components.
B. Replace the damaged parts.
C. Reinstall the damaged components.
A. 用温水浸泡该区域。
B. 用温水冲洗该区域。
C. 用温水清洗该区域。
A. Correct situation is important because it shows how the different parts of the text are relied and to prevent ambiguity.
B. Correct punctuation is important because it shows how the different parts of the text are related and to prevent ambiguity.
C. Correct punctuation is important because it shows how the different parts of the text are related and to prevent ambitious.
A. Add 5 ml of hardener to the compound.
B. Add 5 ml of adhesive to the compound.
C. Put 5 ml of hardener to the component.
A. 如果转子突然停止，请检查进气中是否含有不需要的杂质。
B. 如果转子突然停止转动，检查进气道是否存有外来物。
C. 如果转子突然停止，请检查进气口是否有需要的杂物。
