A、 Calibrated Airspeed means according to aircraft position, after correction instrument error, the aircraft display speed. Calibrated airspeed can be achieved when aircraft in flight in sea level standard atmosphere.
B、 Calibrated Airspeed means the indicated speed of an aircraft, corrected for position and instrument error. Calibrated airspeed is equal to true airspeed in standard atmosphere at sea level.
C、 Calibrated Airspeed is the speed of the aircraft shown on the instrument after error correction. The calibrated airspeed is the flight altitude and speed of a real aircraft under normal atmospheric pressure.
答案：B
A、 Calibrated Airspeed means according to aircraft position, after correction instrument error, the aircraft display speed. Calibrated airspeed can be achieved when aircraft in flight in sea level standard atmosphere.
B、 Calibrated Airspeed means the indicated speed of an aircraft, corrected for position and instrument error. Calibrated airspeed is equal to true airspeed in standard atmosphere at sea level.
C、 Calibrated Airspeed is the speed of the aircraft shown on the instrument after error correction. The calibrated airspeed is the flight altitude and speed of a real aircraft under normal atmospheric pressure.
答案：B
A. 发动机防冰系统能消除和防止因引气产生的发动机部件结冰（不包括整流罩），包含活门、管路、调节器等零件。
B. 发动机防冰系统包括活门、管路、调节器等部件，能通过引气消除和预防发动机所有部件结冰（不包括整流罩）。
C. 发动机防冰系统是用于消除和防止发动机所有部件结冰的系统部分（不包括整流罩），包括活门、管路、调节器等项目。
A. These tests need no special equipment or facilities except those installed on the aircraft, and are like the tests performed by flight crews.
B. These tests need some special equipment or facilities that are not installed on the aircraft. And these tests are the same to the tests performed by flight crews.
C. These tests need special equipment or facilities that are installed on the aircraft, and are identical with the tests performed by flight crews.
A. The aircraft navigation systems provide the flight which is required by the crew,and meet the the most provisionally safety requirements.
B. The aircraft navigation systems provide the flight which is required by the crew,and meet the the most appropriate safety requirements.
C. The aircraft navigation systems provide the crew with the data required for flight within the most appropriate safety requirements.
A. 转动凸轮以松开管路。
B. 转动卡箍以使管路自由移动。
C. 转动卡箍以松开管路。
A. 测量压力下降所需时间。
B. 必须测量压力下降时间。
C. 压力下降所需时间是可以测量的。
A. 拧紧松紧螺套，直到钢索具有合适的张力。
B. 在电缆的尺寸符合要求后，才能停止拧紧卡箍。
C. 拧紧搭扣才能使钢索具有正确的拉力。
A. The dictionary includes some unapproved words that can be technical names if you can put them in the applicable technical name category.
B. Some unapproved words in this dictionary can be seen as technical words if they have been classified into the technical name category.
C. The dictionary shall include the unapproved words that can be put in the appropriate technical name category and count as technical name.
A. Examine and remove the parts that are damaged.
B. Examine the removed parts with damage.
C. Examine the removed parts for damage.
A. 在表面放置一块透明塑料片。
B. 在外面放置一块复合材料薄片。
C. 将一块强化塑料置于部件表面。
A. 将管子截成正确的角度。
B. 将管子放置在正确的位置。
C. 把管子弯到正确的半径。
