1943. 灭火后,关闭灭火器上的阀门

A. 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.

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

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

A. the air pressure is almost correct

B. the air pressure is too low

C. the air pressure is too high

A. 确保装置底部两个接线板粘合

B. 确保装置底部两个接口结合

C. 确保装置顶部两个接线板粘合

A. Most military and commercial aircraft is equipped with turbo-fan engines

B. Most freighter and commercial aircraft is equipped with propeller engine

C. Most freighter and commercial aircraft is equipped with turbo-fan engines

A. 确保那台设备在这个区域里是收好的。

B. 确保这个区域的设备都已打扫干净。

C. 确保这片区域的设备都清空了。

A. Only the flow direction arrow on the valve can prevent incorrect installation.

B. A male and female flange are used to prevent the IPCV from incorrect Installation. The flow direction arrow on the valve can not do the same function expect for showing the flow direction.

C. Either the male and female flange or the flow direction arrow can prevent incorrect installation.

A. 前面的每章目录将列出大量的项目和分配的数字。

B. 每章前面的目录将列出涵盖的项目和分配的编号。

C. 每章前面的内容将列出覆盖的项目和制定的编号。

A. Total number of rules is decreased from 65 to 53.

B. Total number of rules ascended from 65 to 53.

C. Total number of rules increased from 65 to 53.

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. Apply a small quantity of oil to the threads of the two bolts.

B. Lubricate the threads with a small quantity of oil.

C. Lubricate the two bolts with oil.