A、 The pointer that moves along the scale is a vertically.
B、 The pointer moves horizontally along the scale.
C、 The pointer moves vertically along the scale.
答案：C
A、 The pointer that moves along the scale is a vertically.
B、 The pointer moves horizontally along the scale.
C、 The pointer moves vertically along the scale.
答案：C
A. In procedural sentences, you can use a maximum of 20 words before the comma.
B. In procedural sentences, you can use a maximum of 20 words before the colon.
C. In procedural sentences, you can use at least 20 words before the full stop.
A. 三个月后给局方发送一次报告。
B. 每隔三个月给局方发送一次报告。
C. 每隔三个月给政府发送一次报告。
A. Removal of the cover is necessary
B. It is necessary to install the cover
C. lt is a must to remove the cover
A. All aircraft engines must meet certain general efficiency, economy, and reliability requirements, which require that the ignition system can provide ignition pulses at the proper time to the spark plug in various weather and other adverse conditions.
B. All aircraft engines must meet certain overall efficiency, economy and reliability requirements, which require the ignition system should provide ignition pulses at appropriate times under meteorological and other unfavorable conditions.
C. All aircraft engines must meet certain general requirements of reliability, economic and efficiency, which dictates the use of ignition systems that deliver the firing impulse to the spark plugs in all kinds of weather and under other adverse conditions.
A. For purposes of this specification, aircraft" means the relevant optional parts of the airframe and parts specified in the type certificate or supplied by the aircraft manufacturer"
B. For the intention of this specification, airplane" is know as the airframe selective components set forth in the Type Certificate or provided by the airplane producer."
C. For purposes of this specification, aircraft" means the airframe and parts specified in the Type Certificate or the related optional parts supplied by the aircraft manufacturer."
A. The checklist should include abundant items which are helpful to the pilot inan emergency.
B. The checklist should include the fewest items which must be critical to help the pilotin an emergency.
C. The checklist should have all items that are determined useful by the pilot inan emergency.
A. During engine run, the number 1 engine oil pressure watch swings.
B. During engine run, the number 1 engine oil pressure gauge fluctuates.
C. During engine run, the number 1 engine oil pressure indication moves.
A. Install caps on the plug to make sure that unwanted material does not go into the receptacles.
B. Install caps on the receptacles to make sure that unwanted material does not go into the receptacles.
C. Install caps on the pin to make sure that unwanted material does not go into the receptacles・
A. The wing has two precise dimensions which provide the wing position in inches.
B. The position of the wing is shown in inches by the two accurate configuration of the wing.
C. The location of the wing is presented in inches by the two reference dimensions of the wing.
A. Operational test should be done with the special tools.
B. Certain ground facilities are required when operational test needs to be done.
C. Operational test is similar to the tests performed by pilots.
