从信息资源管理的观点出发，信息系统的逻辑结构一般由4部分组成，其中 (1) 利用信息系统提供的信息进行决策和选择，是信息系统服务的对象。
A. 信息源
B. 信息处理器
C. 信息使用者
D. 信息管理者
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Vince is Learning Chinese in my class. Andy.
A) So is
B) So does
C) Nor does
D) Neither is
下列叙述中，正确的一条是
A. 字节通常用英文单词“bit”来表示
B. 目前广泛使用的Pentium机其字长为5个字节
C. 计算机存储器中将8个相邻的二进制位作为一个单位，这种单位称为字节
D. 微型计算机的字长并不一定是字节的倍数
The West Indies, apart from the Bahamas, ______ into two parts.
A. divide
B. divides
C. are divided
D. is divided
We learn from the passage that as a teacher the writer does all of the following EXCEPT that ______.
A. he often stays up late
B. he often feels nervous
C. he often suffers from stomachache
D. he is often worried about the effect of his teaching
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