A、 If an AC circuit consists of resistance only,the value of the impedance is the same as the resistance.
B、 If an AC circuit consists of impedance only, the value of the capacitance is the same as the impedance.
C、 If an DC circuit has capacitance only,the value of the resistance is the same as the capacitance.
答案：A
A、 If an AC circuit consists of resistance only,the value of the impedance is the same as the resistance.
B、 If an AC circuit consists of impedance only, the value of the capacitance is the same as the impedance.
C、 If an DC circuit has capacitance only,the value of the resistance is the same as the capacitance.
答案：A
A. After the system is pressurized, the elevators will drop down no matter where the rigging pin is installed.
B. Without the rigging pin, the elevators will go down when there is no pressure in the system.
C. The rigging pin can prevent
de-energized.
A. 获取桶燃油,并做一项含水量测试
B. 取份燃油样品,并进行一项水污染测试
C. 获取一份燃油资料,并分析水含量
A. One or more separate documents for some types of equipment such as avionics and instrumentation may
be required because they change frequently, or they have various combinations.
B. Some types of equipment such as avionics and instrumentation are changed regularly or combined in
different forms requiring to have one or more separate documents.
C. Some types of equipment such as avionics and instrumentation are often revised or combined differently
to require one or more separate documents.
A. 不论怎样的“危机”大多数总是会出现需要马上快速反应的故障,比如全动力故障,着火或烟雾,或者客舱的
快速释压。
B. 可是一个“危急情况”几乎总伴随着故障,需要立即快速反馈,比如一个动力装置故障, 着火或烟雾,或快
速客舱减压。
C. 然而,紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火灾或烟雾,或座舱快
速失压。
A. 给装有泵的系统 B 提供液压
B. 给系统 B 和泵提供液压
C. 用泵给系统 B 提供液压
A. The airworthiness section may recommend each expected replacement time.
B. The replacement time must be set forth in part of airworthiness section
C. Airworthiness section must set forth each mandatory replacement time.
A. This equipment is 18-feet-long.
B. This equipment is 18 foot long.
C. This equipment is 18 feet long.
A. The compressing of the spring can cause the valve to open.
B. There is no change of the valve when the spring compresses.
C. After compressing of the spring, the valve goes to closed position.
A. This section provides procedures to calculate weight and moments for different phases of a scheduled
flight and to make sure that the center of thrust is beyond approved limits.
B. The paragraph gives the weight and moments for calculating all kinds of phases of a planned fight and
procedures for ensuring that center of gravity is within authorized limits.
C. This paragraph describes the procedures to calculate weight and moment for various phases of a planned
flight and to ensure that the center of gravity is within approved limits.
A. The main gear leg could be held by the side stay.
B. The main gear leg could be hampered by the side stay.
C. The main gear leg could be contained by the side stay.
