An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）

A . Rising clouds B . Lowering clouds C . Thickening clouds D . Scattering cloud

A . effectiveness of water-cooled exhaust elbows B . distribution of the load between engine cylinders C . amount of fuel penetration into the engine cylinders D . indicated horsepower of the engine cylinder

A . Fire a red flare at night or a red smoke signal by day B . Send the Morse signal "N" by flashing light C . Make a round turn (360°) and resume course D . Make an "S" turn (hard right then hard left) and resume course

A . its B . their C . it’s D . hi

A . circling the vessel at least once B . heading in the direction of the distress location C . flashing the navigation lights on and off D . crossing ahead and rocking the wing

A . SOS B . XXX C . TTT D . PAN

A . Orsat apparatus B . flame safety lamp C . Halide torch D . combustible gas indicator

A . turning the victim's head to the side to keep his airway open B . positioning the victim so the head is lower than the body C . giving the victim water if he is thirsty，but no food D . elevating the head and shoulders slightly with a pillow

A . limited to carry no more than 10 persons B . stowed not more than 59 feet above the lightest waterline C . stowed in quick release racks D . inspected every six month

A . insufficient lube oil circulating through the system B . excessive circulation of lube oil through the system C . insufficient refrigerant in the system D . an overworked compressor

A . the period of time during which no trouble occurs to the engine B . no trouble will occur to the engine all its life C . trouble may occur freely to the engine D . no matter what you do to the engine, no trouble will occur during this period

A . GM B . KG C . KM D . GZ

A . magnetic equator B . magnetic longitude reference line C . points where there is no variation D . points where there is no annual change in variatio

A . distress alert B . urgency message C . safety message D . routine message

A．A.appetite B．B.stomach C．C.head D．D.belly

A、every 7 consecutive days. B、Any 7 consecutive days or the equivalent thereof within any calendar month. C、Each calendar week.

A、Take any action considered necessary under the circumstances. B、Comply with the company’s lost aircraft plan. C、Phone the ARTCC where the flight is located and ask for a phone patch with the flight.

A、living B、lively C、alive D、live

A．China will overtake US as the dominant country in innovation and creativity B．China"s focus is to create the new and revolutionary and to repurpose others" ideas C．China"s accomplishment concerning innovations still leaves much to be desired D．U.S. is in danger of losing the patent race to China

The early years of development are critical years for learning abut oneself. The sport setting is one where valuable experiences can take place. Young athletes can, for example, learn how to cooperate with others, make friends, and gain other social skills that will be used throughout their lives. Coaches and parents should be aware, at all times, that their feedback to youngsters can greatly affect their children. Youngsters may take their parents’ and coaches’ criticisms to heart and find a flaw (缺陷) in themselves. Coaches and parents should also be cautious that youth sport participation does not become work for children. The outcome of the game should not be more important than the process of learning the sport and other life lessons. In today’s youth sport setting, young athletes may be worrying more about who will win instead of enjoying themselves and the sport. Following a game, many parents and coaches focus on the outcome and find fault with youngsters’ performances. Positive reinforcement should be provided regardless of the outcome. Research indicates that positive reinforcement motivates and has a greater effect on learning than criticism. Again, criticism can create high levels of stress, which can lead to burnout. 第16题：An effective way to prevent the burnout of young athletes is ________. A) to make sports less competitive B) to make sports more challenging C) to reduce their mental stress D) to increase their sense of success

A．data B．criteria C．committees D．flags