A. Check valve, that allows fluid blows in one direction completely but blocks all flow in the other direction, is a pneumatic or hydraulic system component.

B. One way valve is a hydro or gaseous system component that allows fluid flows in one direction freely but blocks all flow in the opposite direction.

C. Check valve is a hydraulic or pneumatic system component that allows full flow of fluid in one direction but blocks all flow in the opposite direction.

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3010. Add solvent to make the paint more liquid

A. 加入溶剂使油漆变得更稀薄

B. 加入溶剂使油漆变得更稳定

C. 在油漆里加入更多的溶剂

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1167. Use the torque wrench to tighten the bolts progressively

A. 使用力矩扳手间隔拧紧螺栓。

B. 使用扭力扳手按顺序拧紧螺栓。

C. 使用扭矩扳手逐步拧紧螺栓。

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1. All flow control devices within the system, such as check valves, fuel pumps, accumulators, and relays should be included

A. 系统内所有流量控制设备,例如单向活门,燃油泵,蓄压器和继电器应包括在内。

B. 系统内所有压力控制设备,例如单向活门,燃油泵,蓄压器和继电器应包括在内。

C. 系统内所有流量控制设备,例如单向活门,燃油泵,蓄压器和跳开关应包括在内。

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2262. Illustrations should be used whenever they will simplify, shorten, or make the text easier to understand

A. 只要能简化、缩短或使文本更容易理解,就应该使用插图。

B. 无论何时都应该使用插图让文本更简洁、短小或使文本更易理解。

C. 应该使用插图当它们能简化、缩短或使文本更容易理解时。

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1065. 一般来说在描述飞机或它的系统时,应该使用第三人称措辞。

A. When described the aircraft and its system, you should always use third people talking.

B. Generally, in describing the airplane or its system, third person wording should be used.

C. When you describing the airplane systems, third person mood shall be used.

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1100. 若必须靠近发动机排气口,做好耳朵防护措施。

A. if you must go near the engine exhaust, use ear protection.

B. if you must go to the engine exhaust, use ear protection.

C. if it is necessary to approach the engine exhaust, do ear protection.

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2521. 为避免污染,必须在非常清洁的环境里执行该任务。

A. Because of the risk of contamination, you must do this task in a very clean environment.

B. To prevent environmental pollution, this task must be done in a very clean area.

C. In order to prevent contamination, the task you must do is to find a very clean environment.

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2920. 战略行动计划意欲在公约的框架范围之内实施,以保证国际民航组织在新的时代迎接对民用航空的重大挑战,并满足其所有成员国的需要。

A. The purpose of the Strategic Action Plan is to perform beyond the scope of the convention to ensure that ICAO deals with the challenges for civil aviation in the new era and meets the requirements of all its Member States.

B. The Strategic Action Plan is designed to work within the framework of the convention to ensure that ICAO responds to the major challenges for civil aviation in the coming years and meets the need of all its Member States.

C. The aim of the Strategic Action Plan is to implement within the scope of the convention to make sure that ICAO flinches from challenges for civil aviation in the coming era and meets the requirements of its Member States.

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2423. If the wheel temperature increases to more than 177 DEG, the core of the fusible plug melts and the tire deflates

A. 如果轮胎温度升高超过177度,插头熔化且轮胎放气。

B. 如果轮胎温度升高超过177度,易熔塞和轮胎融化。

C. 如果轮胎温度升高超过177度,易熔塞融化且轮胎放气。

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