第21题: [单项选择]在计算机中采用二进制,是因为( )。 A. 电路简单 B. 工作可靠并稳定 C. 二进制的运算法则简单 D. 上述三个原因 参考答案:D 答案解析:[考点] 计算机运算
[解析] 计算机内部采用二进制表示数据,其优点是:电路简单、工作可靠并稳定、运算简单、逻辑性强。因此选D。
第22题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. He has been in a bad mood since he got up. B. The weather affected him. C. He doesn’t like to talk to people. D. He doesn’t ask anyone. 参考答案:A 答案解析:[听力原文]
W: Don’t talk to the boss today. He must have got out of bed on the wrong side.
M: No, his