A、 Make sure that the coils of the oxygen hose do not rub together.
B、 lt is acceptable the coils of the chlorine hose rub together.
C、 Ensure that the coils of the nitrogen hose do not rub together.
答案：A
A、 Make sure that the coils of the oxygen hose do not rub together.
B、 lt is acceptable the coils of the chlorine hose rub together.
C、 Ensure that the coils of the nitrogen hose do not rub together.
答案：A
A. the air pressure is almost correct
B. the air pressure is too low
C. the air pressure is too high
A. These tests shall be independent(独立)
B. These tests shall be self-locking.
C. These tests shall be comprehensive.
A. Use only the approved forms of verbs and adjectives
B. Use only the permitted forms of verbs and adverbs.
C. Use only the applicable forms of adverbs and adjectives.
A. 手册应随时修订,它们可以是活页形式,带有可接受的临时或永久性装订
B. 手册应易与修订,它们可以是活页形式,带有耐用的线圈夹或永久性装订
C. 手册应能够修订,它们可以是活页形式,带有通常的多环式或封面或永久性装订
A. 他拆下入口盖板来看是否有腐蚀的管路。
B. 他移开进入面板检查生锈的管道。
C. 他拆掉了近进盖板看到了腐蚀了的管路。
A. Generally, in describing the airplane or its system, third person wording should be used.(For example、 The
nose wheel is provided with a shimmy damper to keep the wheel from shimmying while rolling on the
ground.)
B. In general, when describing the aircraft or its system, you should use third person such as there is shimmy
damper on the nose wheel in order to prevent the wheel shimmying and rolling on the ground.
C. Generally speaking, third person should be used while describing the aircraft or their system. For example、
the nose wheel is available on the shimmy damper so as to shimmy or roll on the ground.
A. Rub the basin with water.
B. Flush the basin with water.
C. Fill the basin with water.
A. It is necessary to add fluid to the hydraulic reservoir
B. Drain fluid to the hydraulic reservoir as necessary.
C. Add fluid to the hydraulic reservoir as necessary
A. This procedure gives you the disassembly process.
C. The assembly process can be found in this section.
A. 沿四周向内对窗户进行抛光。
B. 以圆周运动方式擦拭窗户。
C. 呈垂直方向给窗户镀膜。
