申请人或收款人无论为单位或个人，出票银行均为其签发现金银行汇票。()
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He left school because
A. he did not enjoy school.
B. he wanted to work with computers and staying at school did not help him.
C. he was afraid of getting too old to start computing.
D. he wanted to earn a lot of money.
Why does David think he might retire early？
A. Because you have to be young to write computer programs.
Because he wants to stop working when he is a millionaire.
C. Because he thinks computer games might not always sell so well.
D. Because he thinks his firm might go bankrupt.
下面四种内排序方法中，要求内存容量最大的是()
A. 插入排序
B. 选择排序
C. 快速排序
D. 归并排序
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