在编写汇编浯言程序时，常常对存储单元赋产一个名字，这些存储单元一般有二种类型的用途：常数单元、（）单元及（）单元。
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科目名称可以用阿拉伯数字表示。
A. 正确
B. 错误
徽州文化和徽州学是同时产生的。
A. 正确
B. 错误
Which statements are true regarding table compression？（）
A. It saves disk space and reduces memory usage.
B. It saves disk space but has no effect on memory usage.
C. It incurs extra CPU overhead during DML as well as direct loading operations.
D. It incurs extra CPU overhead during DML but not direct loading operations.
E. It requires uncompress operation during I/
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