Gradually open the cocks on the recharging unit.

A. 相对时间内的的生产效率就是相对生产率.

B. 速率是速度在一定时间的变化.

C. 加速度是速度随时间的变化率.

A. 本程序指出，在飞机进行任何改装之前，应联系美国联邦航空局，以确保不违反飞机的适航性。

B. 本程序指出，在飞机进行任何改装之前，美国联邦航空局应与厂家确认其不违反飞机的适航性。

C. 本程序指出，在飞机进行任何改装之初，应联系美国联邦航空局，以确保飞机的适航性。

A. 标准化将通过对根据本规范制定的持续适航程序中所包含的检查要求的统一解释来提高安全性。

B. 标准化通过统一检查包含在持续适航程序中准备的相应规范来增强安全性。

C. 通过对符合本规范的持续适航程序中的检查要求进行一致性验证，标准化将提高安全性。

A. This section includes all the fuel consumption information for the pilot to use during the flight and landing.

B. In this section, the pilot can find the recommending fuel saving information to use during takeoff and flight.

C. The recommended fuel conservation information shall be integrated into this section to show the pilot how to minimize the fuel usage during the operation of the airplane.

A. Place chocks around all landing gear tires.

B. Set the wheel gears beneath all landing gear wheels.

C. Assemble blocks around all landing gears.

A. 如果能简化、缩短文本或能使文本更容易理解，则应使用插图。

B. 应该使用插图，因为插图可以简化、缩短文本，并使文本更易理解。

C. 如果文本复杂、冗长或不易于理解，则应进行解释说明。

A. Airspeeds used in this Section shall be specified in Indicated Airspeed, assuming zero instrument error, in order to make the information as directly usable as possible.

B. This Section shall use Indicated Airspeed as Airspeed, i.e. the instrument is mostly accurate, so the information can be used directly.

C. Airspeed used in this Section shall be defined as Indicated Airspeed, that is, the instrument is almost right, so as to make the information possibly be used directly.

A. Those units and components are used to keep account of data that is unrelated to a particular system.

B. The purpose of those units and components is to obtain values that are independent of a particular system.

C. The function of these units and components is to save the files that have nothing to do with a peculiar system.

A. Outside air temperature is the free air static temperature, obtained either from temperature indications onboard or ground meteorological sources, adjusted for instrument error and compressibility effects.

B. Outside air temperature is the free air static temperature, acquired either from inflight temperature indications or ground geological sources, modified by instrument error and compression effects.

C. Outside air temperature is the free air static temperature, derived either from inflight temperature indicators or ground methodological sources, modulating instrument error and compressibility effects.

A. There is no influence on your eyes for hydraulic fluid.

B. Hydraulic fluid has no effect on your eyes.

C. Hydraulic fluid can cause eye injury.