[填空题] Pilot Cabuk was at the control seat calling out his climb checklist after taking off. Keeping him company in the copilot’s seat was the plane’s owner, Doug White. Cabuk began a __36__ call to air traffic controllers in Miami, but __37__ his voice lowered and his head fell to his chest. White __38__ him on the shoulder and tried __39__ him awake, but he was still. The plane was a mile above the earth, climbing up at a speed of 2, 000 feet per minute. And no one on board knew __40__ to get it safely to the __41__. White got on the radio. “Miami,” he said in a trembling (颤抖的) voice, “I’ve got to __42__ —an emergency (紧急状态). My pilot fell ill and is in a terrible state. I need __43__ up here.” Nate Henkels took the __44__ at the Miami center. He was __45__; few aircraft had been as large as this one. Henkels instructed White to __46__ at the height of 12, 000 feet. But the plane kept __47__. “Don’t worry. Pull back gently.” Henkels said, fighting his own __48__
A. A．interesting
B．dangerous
C．foolish
D．effective