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【单选题】
设有下面的两个类定义: class AA{ void Show ( ) {System.out.println ('I Like Java'):} } class BB extends AA} void Show ( ) {System.out.println ('I like C++'); } } 则顺序执行如下语句后输出的结果为( )。 AA a; BB b; a.Show (); b.Show ();
A.
I Like Java I Like C++
B.
I Like C++ I Like Java
C.
I Like Java I Like Java
D.
I Like C++ I Like C++
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参考答案:
举一反三
【单选题】短时记忆的信息保留时间为
A.
1-2秒
B.
1分钟以内
C.
1小时以内
D.
1天以内
E.
1个月以内
【单选题】Americans still say,'Go west,young man',because______.
A.
if they go west they can have a travel
B.
in the west there is a prison
C.
there they have to live a hard life to grow into men
D.
the prison doesn't change them
【单选题】With oil prices and interest rates low, more and more Americans are buying boats and as traffic on the waterways increases, so does the number of accidents from drinking and driving on water. A Nation...
A.
People are willing to spend money on boating.
B.
Boating enjoys greater freedom than driving on land.
C.
Boating is less expensive than before.
D.
Boating is more exciting than driving on land.
【判断题】氧气瓶及其专用工具严禁与油类接触,氧气瓶附近也不得有油类存在,绝对不能穿用沾有油脂的工作服、手套及油手操作,以防万一氧气冲出后发生燃烧甚至爆炸。
A.
正确
B.
错误
【单选题】短时记忆的信息保留时间为:
A.
1-2S
B.
1分钟内
C.
1分钟以上
D.
1天内
E.
一个月内
【判断题】不能穿用沾有油脂的工作服、手套及油手操作氧气瓶,以防万一氧气冲出后发生燃烧甚至爆炸。
A.
正确
B.
错误
【简答题】阅读题:Americans have always been ambivalent in their attitudes toward education. On the one handQuestions 26 to 30 are based on the following passage. Americans have always been ambivalent in their atti...
【单选题】短时记忆的信息保留时间为
A.
1-2秒
B.
1分钟以内
C.
1小时以内
D.
1天以内
E.
1周以内
【简答题】请用顺序结构实现如下问题的算法:a=5,b=10,交换a和b中的数值;
【单选题】记忆是人脑对过去经历过的事物的一种反映,可分为长时记忆、短时记忆和瞬时记忆三种。长时记忆的信息保留时间为()
A.
1-2秒
B.
1分钟内
C.
1分钟以上
D.
一个月内
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