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【单选题】
若二进制数为 1111.101 ,则相应的十进制数为( )。
A.
14.625
B.
15.5
C.
15.625
D.
14.5
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参考答案：
举一反三
【单选题】以下C程序的运行结果是(方框表示空格): #include int main() { long y=-43456; printf("y=%-8ld\n",y); printf("y=%-08ld\n",y); printf("y=%08ld\n",y); printf("y=%+8ld\n",y); return 0; }
A.
y=□□-43456 y=-□□43456 y=-0043456 y=-43456
B.
y=-43456 y=-43456 y=-0043456 y=+□-43456
C.
y=-43456 y=-43456 y=-0043456 y=□□-43456
D.
y=□□-43456 y=-0043456 y=00043456 y=+43456
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【判断题】商业发票、装箱单、提单上显示。但指示性、警告性标志无须在上述单据上显示。
A.
正确
B.
错误
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【简答题】完型填空 Many TV programs seem to be quite realistic. One who watches TV often feels that 1 happened in the film may as well happen to him. With only a little 2 , every man in the street may turn 3 to be ...
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【简答题】完型填空。 Rosa and Mary are neighbours. They often 1 things from each other. But Rosa often borrows Mary's car, money and other expensive (贵重) things. She 2 borrow cheap things. One  day, again, she asked...
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【判断题】货物外包装上的运输标志须在有关的托运单、商业发票、装箱单、提单上显示，但指示性标志、警告标志和危险性标志无须在上述文件上显示。 （ ）
A.
正确
B.
错误
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【简答题】完型填空。 Much meaning can be carried clearly, with our eyes, so it is often 1 that eyes can speak. Do you have such kind of 2 ? In a bus you may look at a stranger, but not too long And if he 3 that he i...
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【简答题】完型填空。 Long ago, a young man often said that he was very 1 and owned nothing. One day, an old man walked 2 . He heard the young man's words and said, 'Hello, young man! What are you 3 about? You have n...
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【判断题】货物外包装上的运输标志须在有关的托运单、商业发票、装箱单、提单上显示,但是指示性标志、警告性标志无须在上述单据上显示。
A.
正确
B.
错误
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【多选题】有关DB外模式的说法正确的是( )
A.
DB外模式与应用程序只能是一 一对应的。
B.
DB外模式与应用程序是多对多的，即一个外模式可以对应多个外部应用程序，一个外部应用程序也可以对应多个外模式。
C.
DB外模式对DB中数据的安全性有一定的保护作用，对数据库应用程序和用户屏蔽了其不需要的数据视图。
D.
DB外模式来自于DB模式的抽象映射和转换。因此外模式和模式中表达同一语义的数据可能在名称和数据类型上存在差异。
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【简答题】完型填空 If  you have ever been discouraged because of failure,please read on.For often,achieving what you __ 1 __to do is not the important thing.Let me explain. Two brothers decided to dig a__ 2 __hole ...
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相关题目：
【单选题】以下C程序的运行结果是(方框表示空格): #include int main() { long y=-43456; printf("y=%-8ld\n",y); printf("y=%-08ld\n",y); printf("y=%08ld\n",y); printf("y=%+8ld\n",y); return 0; }
A.
y=□□-43456 y=-□□43456 y=-0043456 y=-43456
B.
y=-43456 y=-43456 y=-0043456 y=+□-43456
C.
y=-43456 y=-43456 y=-0043456 y=□□-43456
D.
y=□□-43456 y=-0043456 y=00043456 y=+43456
查看完整题目与答案
【判断题】商业发票、装箱单、提单上显示。但指示性、警告性标志无须在上述单据上显示。
A.
正确
B.
错误
查看完整题目与答案
【简答题】完型填空 Many TV programs seem to be quite realistic. One who watches TV often feels that 1 happened in the film may as well happen to him. With only a little 2 , every man in the street may turn 3 to be ...
查看完整题目与答案
【简答题】完型填空。 Rosa and Mary are neighbours. They often 1 things from each other. But Rosa often borrows Mary's car, money and other expensive (贵重) things. She 2 borrow cheap things. One  day, again, she asked...
查看完整题目与答案
【判断题】货物外包装上的运输标志须在有关的托运单、商业发票、装箱单、提单上显示，但指示性标志、警告标志和危险性标志无须在上述文件上显示。 （ ）
A.
正确
B.
错误
查看完整题目与答案
【简答题】完型填空。 Much meaning can be carried clearly, with our eyes, so it is often 1 that eyes can speak. Do you have such kind of 2 ? In a bus you may look at a stranger, but not too long And if he 3 that he i...
查看完整题目与答案
【简答题】完型填空。 Long ago, a young man often said that he was very 1 and owned nothing. One day, an old man walked 2 . He heard the young man's words and said, 'Hello, young man! What are you 3 about? You have n...
查看完整题目与答案
【判断题】货物外包装上的运输标志须在有关的托运单、商业发票、装箱单、提单上显示,但是指示性标志、警告性标志无须在上述单据上显示。
A.
正确
B.
错误
查看完整题目与答案
【多选题】有关DB外模式的说法正确的是( )
A.
DB外模式与应用程序只能是一 一对应的。
B.
DB外模式与应用程序是多对多的，即一个外模式可以对应多个外部应用程序，一个外部应用程序也可以对应多个外模式。
C.
DB外模式对DB中数据的安全性有一定的保护作用，对数据库应用程序和用户屏蔽了其不需要的数据视图。
D.
DB外模式来自于DB模式的抽象映射和转换。因此外模式和模式中表达同一语义的数据可能在名称和数据类型上存在差异。
查看完整题目与答案
【简答题】完型填空 If  you have ever been discouraged because of failure,please read on.For often,achieving what you __ 1 __to do is not the important thing.Let me explain. Two brothers decided to dig a__ 2 __hole ...
查看完整题目与答案
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