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【单选题】
飞机航向稳定性是指飞机受到侧风干扰后()。A.
产生绕立轴转动，扰动消失后转角自动回到零
B.
产生绕立轴转动，扰动消失后自动恢复原飞行姿态
C.
产生绕横轴转动，扰动消失后自动回到零
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举一反三
【单选题】发达国家的劳动的供给曲线已经显示出了一个鲜明的特点，即它具有一段“向后弯曲”的部分，也就是说，当工资超过某个水平之后时，如果继续增加工资，劳动的供给量（）
A.
也会继续增加
B.
就会保持不变
C.
就会增加得更快
D.
非但不会增加，反而会减少
【单选题】Sandy used to eat fast food. But now she _______ eats them. So she is becoming much healthier.
A.
usually
B.
seldom
C.
often
D.
always
【简答题】撰写总结报告应注意的原则有（ ）。
【单选题】Sandy used to eat fast food. But now she _______ eats them. So she is becoming much healthier.
A.
usually
B.
often
C.
seldom
D.
always
【单选题】关于劳动力供给的替代效应和收入效应,下列说法中,错误的是( )。
A.
替代效应指的是,当工资上升时,消费者因闲暇变得相对昂贵而增加劳动时间
B.
由于货币工资的增加,收入水平的提高会使得消费者倾向于减少劳动时间
C.
消费者提供的劳动量一定会随着工资的上升而增加
D.
若替代效应小于收入效应,则由消费者提供的劳动量会随着工资的增加而下降
【简答题】Section D 听力原文： Every year a large number of young people leave school and begin work. Some obtain jobs on farms or in industry. Others accept positions in the government services. Many seek post in b...
【简答题】Every year many young people leave school for a few weeks or months and enjoy an unusual type of educational program. They learn new skills by living in a different country and doing unusual jobs. The...
【单选题】What does it mean by 'Buses leave every hour on the hour'?
A.
Buses leave every two hours.
B.
Buses leave every one and half hours.
C.
Buses leave every hour such as nine o'clock, ten o'clock, and so on.
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