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【单选题】
变量已经正确定义，要将a和b中的两个数进行交换，不正确的赋值语句是（ ）。A.
a=a+b,b=a-b,a=a-b;
B.
a=b,b=a;
C.
t=a,a=b,b=t;
D.
t=b;b=a;a=t;
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A.
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B.
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C.
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【简答题】思考题:查阅资料后,回答新型模板及支撑体系有哪些?有何优缺点?
【单选题】The statement 'With so many loopholes in everyday life, surly Finland must be heaven to those who love to take ' petty advantages'' means ______.
A.
Because people are very lazy to correct the mistakes in their daily life, it provides a good chance for those who like taking advantages
B.
Since people take everything easy in the daily life, Finland is a safe place for those who enjoy benefiting from such carelessness
C.
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D.
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A.
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B.
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