Too much hesitation may even ______ the emergency situation. A: decelerate B: aggravate C: approximate D: associate

让该组件的温度下降直到它与环境温度相同。 A: Let the temperature of the component decrease until it is the same as the ambient temperature. B: Let the temperature of the component cool to ambient. C: Let the temperature of the component decay to ambient. D: Let the temperature of the component decelerate to ambient.

Before the airplane begins to move, thrust must be exerted. It continues to move and gain speed until thrust and drag are equal. In order to maintain a constant airspeed, thrust and drag must remain equal, just as lift and weight must be equal to maintain a constant altitude. If in level flight, the engine power is reduced, the thrust is lessened, and the airplane slows down. As long as the thrust is less than the drag, the airplane continues to decelerate until its airspeed is insufficient to support it in the air. Likewise, if