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【简答题】
化简：（1） 1 2 -3 2 +sin45°；（2） 3x (x-3) 2 + x x-3 ．
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举一反三
【简答题】Driving a car without insurance can have _____ consequences. A. uncertain B. disastrous C. potential D. unworthy
【简答题】His job is driving a car, a bus or a train and so on.
【单选题】下面关于set集合处理重复元素的说法正确的是()
A.
如果加入一个重复元素,将抛出异常
B.
如果加入一个重复元素,add方法将返回false
C.
集合通过调用equals方法可以返回包含重复值的元素
D.
添加重复值将导致编译出错
【单选题】To pass the driving test, Alice had a busy month______driving the car.A．to practiseB．practisingC
A.
29. To pass the driving test, Alice had a busy month______driving the car. A．to practise
B.
practising
C.
practised
D.
Practise
【单选题】And risk compensation is hardly confined to the act of driving a car.
A.
Other phenomenon can also be explained by the notion of risk compensation.
B.
Risk compensation supports the act of driving a car strongly.
【单选题】Driving a car is not as difficult as youimagine, if you therules.
A.
dependon
B.
believe in
C.
turnto
D.
stick to
【单选题】To pass the driving test, Alice had a busy month __________ driving the car.
A.
to practise
B.
practising
C.
practised
D.
practice
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