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【单选题】
-- We have three meals _____ day, breakfast, lunch and supper. What about in your country? -- We have one more meal than you. That ’ s in _____ afternoon.A.
an ; the
B.
a ; the
C.
the ; an
D.
/ ; an
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【简答题】The earth of today is not that it was millions of years ago.
【简答题】Today Newtown is a clean place, but many years ago there were millions of rats there. The rats even attacked (攻击 ) the cats and dogs. Sometimes many of them tried to bite men or women at night. The ra...
【简答题】以下程序的执行结果为:def mean(*args): length=0 s=0 for e in args: s+=e length+=1 return s/lengthprint(mean(2,3,4,5,6))A. 4 B. 20 C. 6 D. 10
【单选题】Which of the following is NOT TRUE according to the passage?
A.
Today millions of Americans vacation abroad.
B.
Many Americans go abroad with the hope to meet a confidant.
C.
Summer is a special time for forming new friendships.
D.
Not many American like to stay in one place for a lifetime.
【简答题】Today, with easy access to the Internet, millions of young people have made new friends online. They share their happiness, sadness and even secrets with these friends. But is it advisable to look for...
【单选题】以下程序的执行结果为: def mean(*args): length=0 s=0 for e in args: s+=e length+=1 return s/length print(mean(2,3,4,5,6))
A.
4
B.
20
C.
6
D.
10
【简答题】阅读理解。 There are millions of used cell phones in the world today, the most of them just lay in our houses without any purpose. Everyday dozens of new cell phone models appeared. Today, you can find wha...
【单选题】以下程序的执行结果为: def mean(*args): length=0 s=0 for e in args: s+=e length+=1 return s/length print(mean(2,3,4,5,6))
A.
4.0
B.
20.0
C.
6.0
D.
10.0
【简答题】下面程序的功能是:统计存放在数列a中的n个数有多少个是不同的。具体做法是:变量left指向要被处理的数(从第2个元素开始),right指向数列最后一个元素。若a[left]与排在它前面的某个数组元素值相同,就用数组元素a[right]的值来替换a[left]的值,同时将变量right的值减1;否则将变量left的值加1,处理数列下一个元素,重复以上过程,直到left>right为止。Right的值...
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