举一反三
- 指示空速是修正仪表误差后空速指示器所指示的飞行速度。 A: Indicated Airspeed is the speed of an aircraft as shown in the airspeed indicator when corrected for instrument error. B: Indicated Airspeed is the aircraft speed indicated by airspeed adapter after modified instrument error. C: Indicated Airspeed is the aircraft speed of an aircraft as shown in the airspeed adjuster when corrected for instrument error.
- The engine may lose power or slow down during running, when this occurs, the first cause possible may be hot bearings and () of the pistons in the cylinders.
- Sometimes during service the aircraft may ________ that may compromise the aircraft's safety.
- When encountering wind shear, an aircraft’s attitude and performance will be disrupted.
- The assembly line significantly _________the assembly time per vehicle and _______the profit margin. A: decreased; increased B: increased; decreased C: increased;increased D: decreased;decreased
内容
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Arterial blood pressure may be increased by() A: decreased sympathetic tone B: Venodilatation C: decreased parasympathetic tone D: decreased vasopressin hormone release E: adrenoceptor blocking drugs
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If the economy shown in the diagram moves from position A to position B, we would know that ( ) A: the rate of unemployment increased. B: consumption goods production increased, but capital goods production decreased. C: its unemployment decreased, but at the expense of either capital or consumption good production. D: it has achieved full employment of resources.
- 2
词汇与结构 When aircraft are under radar control, air traffic controllers may replace some or all of these phases of the approach with radar____.
- 3
The money a man has may fly away when he needs it.
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The main factors contributing to the dramatic increase in the human population in the 20th century are A: industrial revolution and modern medicine. B: increased education and new pesticides. C: increased immigration and decreased warfare. D: new agriculture methods and new food crops. E: decreased warfare and increased birth control.