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【简答题】
下列既可以作为承重构件又可以作为维护构件的是( )
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【简答题】接第2题,上述方案没有按照用户要求,先绘制正方形再绘制所有圆;此外希望可以隔离以后所有的同类变化,也就是是的DrawAllShapes函数对于绘制顺序的变化是封闭的,下面给出了一种改进的方案。 封闭是建立在抽象的基础之上的。因此,为了让 Drawallshapes对于绘制顺序的变化是封闭的,我们需要种“顺序抽象体”。这个抽象体定义了一个抽象接口,通过这个抽象接口可以表示任何可能的排序策略。 一个排...
【简答题】Page 35 listening to a passage. Listen to the passage and check the statements that are in agreement to what the speaker said. 请选出与听力内容相符的句子
【单选题】From the conversation we know if we buy more products from the Universal Computers Ltd.,
A.
we can earn more money
B.
we can benefit more
C.
they will give us more service
D.
they will move their main building to China
【单选题】From the story,we know that____.
A.
We must learn from the farmer。
B.
We should not learn from the farmer。
C.
We should get as much money as possible。
D.
The farmer was the kind hearted。
【单选题】From the conversation we know if we buy more products from the Universal Computers Ltd.,______.
A.
we can earn more mone
B.
we can benefit more
C.
they will give us more service
D.
they will move their main building to China
【单选题】We got to the top of a mountain _________ we can see the whole city.
A.
at where
B.
from there
C.
from where
D.
there
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