时代精神的内涵十分丰富,其中改革创新居于核心地位。下列对“改革创新”的陈述正确的是( )。
A. 改革创新是维护祖国统一和民族团结的纽带
B. 改革创新是进一步解放和发展生产力的必然要求
C. 改革创新是建设社会主义创新型国家的迫切需要
D. 改革创新是贯彻落实科学发展观、构建社会主义和谐社会的重要条件
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_____ landing refers to incidents where a mechanical malfunction prevents the pilot from extending the landing gear.
A. Forced
B. Hard
C. Gear-up
D. Belly
When conducting a belly landing, there is normally _____ damage to the airplane.
A. normal
B. abnormal
C. extensive
D. intensive
During a belly landing, the aircraft runs the risk of _____.
A. flipping through
B. flipping over
C. going over
D. taking over
Strong crosswinds, low visibility, or _____ instruments or controls greatly increase the danger of performing a belly landing.
A. responsive
B. corresponding
C. unresponsive
D. responding